Hello Everyone, It is rare i come across issues in FSX i can't resolve, but this one has me stumped. I'm having annunciator lights turning on when the JS4100 is powered down, as well as during taxing and flights. The 2D window lights such as autopilot lights don't match my 3D window or my gear lights turn red in the down position. The following situations temporarily correct the problem. (1) Pressing the "Push To Test" Button on the Annunciator. It also disengages the autopilot in flight. (2) Switching from windowed mode to Fullscreen (3) Pulling the power levers into reverse when on the ground and back to idle. Unfortunately the random annunciator lights always return after a few min or when panning around the 3d cockpit. Corrective actions i have tired. (1) Uninstalling and re-installing the JS4100. The second, third ect re-installs never asked me for a product code. Issue ? (2) Pre-loading the cessa 172 and Trike. Running and Off. (3) Running in either Windowed mode and Fullscreen. After spending the whole weekend on this, I have decided to come here and ask for some thoughts. After going through all the threads i couldn't find a similar problem. This is by far the best add-on i have used and would like it to work 100% :) Thank-you for reading this.

Very odd, I am looking forward to thoughts on this one as well.

Just a small update. I ran GPU-Z to track down this glitch. Idle @ KCLE. Memory Used: 315mb - 319mb GPU Load : 70-80% The Video Card is a 8800GTS 320mb card. Could it be a memory issue and this card has hit it's limits with all the add-ons i'm running. I'm not sure how a card will handle once you have exceed it's available memory.Thanks again :)

Perhaps, but it's not the symptoms I would expect tho I am not an expert in any sense. The recommended video ram size is 512mb.

Quick Update:I lowered my Resolution from my native 1920 x 1080 to 1680 x 1050. This lowered my GPU memory usage to 290mb - 300mb. I had no more errors the whole flight from KIND to KCLE.On approach to KCLE with REX2 and IFR conditions my errors re-appeared by but not as many random annunciator lights. I quickly checked GPU-Z. And the memory usage was @ 319mb. So to make a long story short I think Santa will have to bring me one of them new fancy video cards. My 8800GTS has served me well over the years. But it seems with REX2, GEX, UTX and god knows what else installed, 320mb isn't cutting it anymore. :)Thank you to all who read this thread.This is by far my favorite add-on to date. Keep up the great work PMDG :)

Thanks much for reporting your results. Someone else coming along later will find it helpful.