I searched the forum and didn't find anything that appeared to apply to this situation. Frankly, I'm not completely sure anything is actually wrong.Here's the situation. The last two weeks I've been doing some computer cleaning and general tweakerizing. All of this resulted in a pretty radical improvement in both framerates and more importantly fluidity. I also installed Flight Environment after finally learning how it's actually supposed to work. So last week we had some interesting weather around here and I decided to fire up FS9 with AS6 (Build 533) to see how it modeled this (heavy overcast, light snow mixed with sleet). Everything loaded up just fine, and it all ran very well - 30FPS (locked at 30) and no stutters.I took off in the 737 PIC (my worst plane performance-wise), flew around a bit, made a wretched ILS approach, followed by a nice missed approach. Everything was smooth as silk. As I climbed through the overcast, I could see the clouds getting a bit brighter every few seconds until I finally broke out on top. That was nice. hadn't seen it before.On top, things were still fine until AS6 went about updating the weather. The download was fine (didn't even notice it at first), but when it started writing station data my FPS dropped down to about 10 (still steady, though) for the duration of the station writes.I'm just confused because I hadn't seen that before. Updates have been so unobtrusive I haven't noticed them ever since I bought Active Sky. I know there are a lot of variables in play here, but I'm wondering first whether or not FE might be the culprit? But that doesn't make sense because there wasn't a massive change in the cloud cover that needed to be re-drawn or anything like that (and I'm using the DXT option). Also, I've set my AS options as suggested in the "real weather" sticky above.Like I said, maybe there isn't a problem here at all. I've just never seen a slow down when AS is writing station data. Any thoughts?Matt

Hi Matt,Sorry for the problem. I would suggest that you uncheck the disable throttling options and see if that makes a difference.Please let us know,Jimhttp://www.hifisim.com/Active Sky V6 Development Team Active Sky V6 Proud SupporterHiFi Beta TeamRadar Contact Supporter: http://www.jdtllc.com/AirSource Member: http://www.air-source.us/FSEconomy Member:http://www.fseconomy.com/

Both throttling options are already unchecked. Well, tomorrow is a day off, so I'll try to experiment a little. Thanks for getting back!Matt

Finally tracked it down and it doesn't seem to have anything to do with Active Sky. According to Filemon, the framerate dips are linked to Flight Simulator accessing all kinds of scenery files that have nothing to do with my current flight. For instance, right now I'm in between San Fran and Honolulu, but every so often FS is looking at addon and default scenery files wayyyy away from the Pacific. JFK, St. Louis, etc. I know this isn't Active Sky's problem, but does anyone know why this is happening? I don't see it every flight, that's for sure. All I can think of is that I installed some scenery yesterday but didn't fire up FS until this morning, so it just rebuilt the database and whatnot right before this flight. Other than that, I'm stumped.