Hi all, I just stumbled upon this thread and so I figured I'd throw something out there.
I use a TH2G Digital, and the only 2D panels I've had a problem with were the forward view ones (SHIFT+1). All the other 2D panels have worked fine.
I've been able to fix the issue on the aircraft I fly regularly, but haven't tried it on all my aircraft since, if I don't typically fly them, then it's not worth fixing (for myself lol.) The reason is, there wasn't a single setting I could set through FSX, my graphics card drivers, nhancer, or any other global method to fix it. The thing I've done to fix my issue involves editing the panel.cfg for each aircraft I wanted to fix.
I've saved the steps I take to a text file, so I can easily 'remember' how to fix the issue again, in case of reinstalls, or new aircraft downloads.
These are the steps to take to fix the issue with the 2D main panel window not showing up on triple-wide resolutions, which causes extreme performance drops and the windows 'wait' cursor to remain active.
1) Open the Panel folder for the aircraft you wish to fix.
2) Make a backup copy of your panel.cfg file, in case anything goes wrong.
3) Open the Panel.cfg file in notepad.
4) Scroll down to the [window00] section. (This is *usually* the main panel window.)
5) Change the line:
window_size= 1.000, 0.874
to:
window_size= 0.333, 0.874
6) Comment out the following line:
window_pos= 0.000, 0.120
When commented out, the line should look like this:
// window_pos= 0.000, 0.120
7) Save the file.
Repeat steps 1-7 for each additional aircraft you wish to fix.
This has been tested by me on FSX SP2, running on Windows Vista 64 at 4320x900x32 (@60Hz) (3 @ 1440x900) using a Maxtrox TripleHead2Go Digital with the latest firmware, with an nVidia 9800GT 1GB video card running v182.50 WHQL drivers (haven't upgraded the drivers lately since everything has been working so well for me).
Good luck, and I hope this helps some of you guys out.
-George
EDIT: One more thing I wanted to mention, the 0.874 value is from Lionheart's Quest Kodiak panel, and may be different on every aircraft. Basically, just leave the second value in that line at whatever value it's at by default. The only number that needs changing is the first one (1.000).