All in all I'm pretty pleased with how I've got FSX running. Sure, we always want more but, overall I'm pretty happy... except... although the flying is pretty smooth, for some reason that I can't remember seeing before, I seem to have dveleoped a stutter every so often. It's got quite annoying because when it happens it's as though the whole screen jumps. It often happens about five seconds after changing views. I have done all the obvious things. Tried with AG set to sparse, no difference, tried a vanillla cfg, no change. I've tried three alternative Nvidia drivers, no change. I've tried all manner of different settings in Inspector but still with no change. Different cfg tweaks such as bufferpools, no change. I've tried shutting programs down in the background, no change. I've tried flying with AV and the firewall switched off and hey, guess what? No change. So fellas, is there anything that I've missed or any magic cure that one of you could suggest. I will wait with baited breath and hope I can get to the bottom of this....cheers :(

Howard, exactly where in FSX and what are you flying in when these stutters hit? Have you changed your ORBX day/night switcher? Also, if you will send me a PM with your email address, I will send you my cfg file. Just add your accepted programs and use it to see if the problem goes away. Just paste and override (after copying) with my file, add your trusted section, do a reboot and start FSX and see what happens. Lets try that.Kind regards,

I know this is going to sound too easy, but I had a similar problem with FSX a while ago. I would get a stutter every few minutes where the screen would flash or freeze for a second. I found someone's suggestion to turn off either 'flying tips' or 'cockpit tooltips' and that fixed it.

I know this is going to sound too easy, but I had a similar problem with FSX a while ago. I would get a stutter every few minutes where the screen would flash or freeze for a second. I found someone's suggestion to turn off either 'flying tips' or 'cockpit tooltips' and that fixed it.

Flying Tips. it does not get on with nvidia cards, As stated in NickN's FSX tuning guide

Howard, exactly where in FSX and what are you flying in when these stutters hit?

Another good question. I don't know if it's pertinent here, but I get severe stutters in certain very precise geographic locations. There's a north-south line just east of East Hampton (KHTO), extending north at least into southern Connecticut, that always produces them. There's another running east-west just north of Friday Harbor (KFHR). It's as though there's a seam in the FSX universe where it suddenly has to load some texture or other, and completely bogs down. It usually clears on its own after 5-10 seconds. Might not be what's reported here but worth adding to the catalog of many possible stutter causes.

Hey guys, it looks as though I may have found the culprit... the autosave feature on FSUIPC was set to autosave every 60 seconds, not sure why as I usually have it set for every 5 minutes. Anyway, I have made the changes and it looks as though that may have been the problem. It was kicking in and causing a sudden stutter as it did so. Still have to keep an eye on things so will keep you all informed.

Hey guys, it looks as though I may have found the culprit... the autosave feature on FSUIPC was set to autosave every 60 seconds, not sure why as I usually have it set for every 5 minutes. Anyway, I have made the changes and it looks as though that may have been the problem. It was kicking in and causing a sudden stutter as it did so. Still have to keep an eye on things so will keep you all informed.

Hey Howard, that is fantastic because like you I have my FSUIPC set to auto-save on the ground every 60 secs and my flash-of-a-second jolts were happening more noticeably while on the ground, taxi-ing out to departure. Not so much in flight because I have set a longer auto-save interval.Thanks for that find.

Flying Tips. it does not get on with nvidia cards, As stated in NickN's FSX tuning guide

Don't have it on,Julian

Hey guys, it looks as though I may have found the culprit... the autosave feature on FSUIPC was set to autosave every 60 seconds, not sure why as I usually have it set for every 5 minutes. Anyway, I have made the changes and it looks as though that may have been the problem. It was kicking in and causing a sudden stutter as it did so. Still have to keep an eye on things so will keep you all informed.

Glad it is sorted Howard. I set mine to 600 sec's and seems to hold off OOM's, as if it refreshes the VAS. After reading a post by Peter Hayes, I tried it and can fly for hours in heavy scenery without a OOM stoppage.

A small free utility that I have been using for some years, may be of some help. If not now, then sometime in the future.Available in 32bit & 64bit. Full manual available for download also.http://alacritypc.kensalter.com/default.html

Glad it is sorted Howard. I set mine to 600 sec's and seems to hold off OOM's, as if it refreshes the VAS. After reading a post by Peter Hayes, I tried it and can fly for hours in heavy scenery without a OOM stoppage.

Hi Julian, that's really interesting. I have to say that I have not had a single OOD, CTD since installing my new rig four months ago. I suspect it may also well be attributable to the latest 'find' between Word Not Allowed and Peter regarding dll errors and the subsequesnt updated FSUIPC. Yesterday I had a celebratory drink as I flew the NGX out of Bristol and down to Ibiza for the first time, without a trace of a problem in any area, a total of 3 hours sim time! Needless to say I made an Acronis backup at that point!Also thanks Stephen for the cfg you PMd me. Although it was no help as such, what I did use from it was Usepools=0. Up until now I had been using Poolsize=0 followed by a RejectThreshold value. This new value made the entire sim feel like a new machine!! Beautifully smooth and virtually blurrieless!

Howard, exactly where in FSX and what are you flying in when these stutters hit? Have you changed your ORBX day/night switcher? Also, if you will send me a PM with your email address, I will send you my cfg file. Just add your accepted programs and use it to see if the problem goes away. Just paste and override (after copying) with my file, add your trusted section, do a reboot and start FSX and see what happens. Lets try that.Kind regards,

Stephen, I would also be interested to see your cfg as I've done some tuning as a result of following posts on this forum. I find it's actually really useful to compare my cfg(s) with other users whilst at the same time trying to move my knowledge forward. So many factors as Word Not Allowed points out.