I really need some help to stop me going mad regarding a deceptively simple problem...My instruments are "frozen" in FSX... they won't budge. This includes attitude indicator (artificial horizon), altimeter, vertical speed indicator (VSI) turn-and-slip and other instruments. Normally when something like this has happened I find it is because I've started some aircraft or other "cold and dark" but forgotten to do something. In this case the instruments don't work even with power ON (master switch ON), engines ON, lights ON, pitot heat ON and avionics master switch ON. The attitude indicator is "frozen" level (i.e. horizontal), which makes me think power/avionics are indeed on, but it just won't budge.This happens with all of the FSX default aircraft and a lot of others too. However, some aircraft are OK, for instance Nemeth EC-135, Aerosoft Beaver, IRIS Vulcan.I've tried creating and saving a new Default Flight with default aircraft (I'm sticking to the Cessna 172 Skyhawk for now) with all switches and engine ON, and restarting FSX... but no joy. I've also tried having the fully functioning Aerosoft Beaver as Default Flight, then switching to the C172, but again no joy.I'm hoping there is a simple fix... or else reinstall beckons!Many thanks in advance

Does this happen when flying or on the ground? You may have forgot to turn on the pitot tube heat and saved a flight that way. Most instuments rely on the pitot tube heat to be on when flying at altitude. Bob G.

Are you starting up with the 2D cockpit as the default? This is selectable by ticking the appropriate box on one of the basic 'Settings' menus.I'm not sure if this is the answer in your case but it is certanly necessary with some of the aircraft.Rgds - Roger

Thanks for your repliesThis happens both in the air and on the ground.I always ensure pitot heat is on.I'll try the default flight with the 2D panel and see...

I tried the 2D panel and the instruments are working fine, both on the ground and in flight. However, when cycling through to the VC the instruments are still frozen :( I used the 2D panel to do a full startup of the Cessna 172 and then saved this as the default flight. When closing and restarting FSX this flight loads properly with everything ON and running. However, the problem isn't solved; 2D panel fine, VC instruments frozen! :( I can't believe I'm the first to have this problem?! I read somewhere that using F9 might help, but no joy. I've been trying to think of any recent changes I've made. The only thing I can think of so far (and I'm pretty sure this was before the problems started) was I stopped using nHancer in favour of nVidia's own Inspector (I have a GTX285 2Gb with driver 260.99) and Bojote's Tweaking and Tuning Tool...PLEASE HELP ME! :(

I tried the 2D panel and the instruments are working fine, both on the ground and in flight. However, when cycling through to the VC the instruments are still frozen :(

Have you, by any chance added the PanelAsTexture=0 line to your fsx.cfg file? or have you increased PoolSize beyond 250_000_000?

Have you, by any chance added the PanelAsTexture=0 line to your fsx.cfg file?

No

or have you increased PoolSize beyond 250_000_000?

Yes! I've had it set at 512,000,000 (i.e. 512Mb) for a long time now, with no problems. However, I just reduced it to 200,000,000 and restarted FSX and I now have gauges working in the VC again!This is great news! However, WHY does this work? Also, why wasn't this an issue before? Is it something recent to do with my hardware (RAM?) or software?Finally, I seem to have two side-effects (so far). One is I now have severe stutters, like never before. The other is I can deflect the yoke all the way to left or right (my joystick moves and the joke also moves in the VC) but the aircraft refuses to roll/bank... Any ideas??Many thanks indeed

I really need some help to stop me going mad regarding a deceptively simple problem...My instruments are "frozen" in FSX... they won't budge. This includes attitude indicator (artificial horizon), altimeter, vertical speed indicator (VSI) turn-and-slip and other instruments. Normally when something like this has happened I find it is because I've started some aircraft or other "cold and dark" but forgotten to do something. In this case the instruments don't work even with power ON (master switch ON), engines ON, lights ON, pitot heat ON and avionics master switch ON. The attitude indicator is "frozen" level (i.e. horizontal), which makes me think power/avionics are indeed on, but it just won't budge.This happens with all of the FSX default aircraft and a lot of others too. However, some aircraft are OK, for instance Nemeth EC-135, Aerosoft Beaver, IRIS Vulcan.I've tried creating and saving a new Default Flight with default aircraft (I'm sticking to the Cessna 172 Skyhawk for now) with all switches and engine ON, and restarting FSX... but no joy. I've also tried having the fully functioning Aerosoft Beaver as Default Flight, then switching to the C172, but again no joy.I'm hoping there is a simple fix... or else reinstall beckons!Many thanks in advance

Have you tried to use the FSX repair function? Might help.Jim

I've considered using Repair, before resorting to a Reinstall. However, hopefully neither will be required as things are looking more like normal.Since my last post I found that a restart of my PC solved the roll/bank issue and the use of the popular FPS_Limiter has helped reduce stutters (although the are still worse than when all this started).I was concerned that the sudden problem with a large BufferPools might be related to some of my RAM becoming faulty, but using Vista's own memory checker no problems were found. Is there anything else I can do in this regard?So, now I'm left wondering how large or small should my BufferPools be? Show I just abandon it? If I remove it should I re-run Bojote's Tweaking and Tuning Tool?

Just erease and reinstall FSX , I think is the best thing to do . I had the same problem , now is working without " bugs "...good lock !