OK, getting somewhere.
Ok mine in my 'edit mode list'
on the right hand side I have
3______1360*768@60Hz______16:9
1______1680*1050@60Hz_____16:10
3______1280*800@60Hz______16:10
In the left hand column, with the button in for the '3(TripleHead)' selected I dont have any res above
3______1280*1024@60Hz_____5:4.
I have never used the SGU and most games run nativly from the res that is set in Windows.
I can however not get DX10 to work via TH2GD, so I run those games in DX9 compatability mode.
I almost completly ignor the matrox software. My res is set via the nVidia control panel (nVidia 195.39 drivers).
I have to set up a custom res for it to work tho. So this involves changing things like Active Pixels, Front Porch, Sync Width, Total Pixels.
If you have yours running I would assume you already have done that ?
Yeah I never use matrox for anything.
I had to do the custom resolution also.
in my "edit mode list" I only have
Right side
3_______1280x1024@60hz_________5:4
3_______1025x768@60hz__________4:3
Left side with triple head , and wide selected the highest mine goes is
3_________1380x768@60hz_________16:9
So maybe this is a problem. It does not have anything remotely close to 5040x1050...
Do you have the beta, or newest GXM?
I am tempted to just reinstall the new GXM, and leave my drivers alone to see what happens. But, I fear I'll never get it working again.