Widescreen Gaming Forum

Don't use the GXM Matrox sent you, it doesn't work. I received a copy as well and 1 of my monitors (which is a dif model to the other 2) went out of range. Everybody else who has tried it has the same problem, please tell them you have the out of range error though. Hopefully it will mean they put out a fixed one soon....we want our 180 series drivers!

So start from the beginning,
1. Un-install your NV driver and the other GXM. Clear out any NV or Matrox folders you can find and run a registry cleaner (Comodo has a good free deep reg cleaner).
2. After restart install NV 177.41 driver. http://www.nvidia.com/object/winvista_x64_175.19_whql.html With Vista NOTHING newer works. The latest officially supported by Matrox is 175.19: http://www.nvidia.com/object/winvista_x64_175.19_whql.html However the 177.41 does work so I use it. If you are using Vista 32bit then replace the x64 in the url with x86.
3. Restart the PC and install the GXM from the Matrox site http://www.matrox.com/graphics/en/support/drivers/download/?id=278 (and by GXM I mean PowerDesk SE).
4. After yet another restart make sure that the Monitor in Device Manager says Matrox triple head digital edition. If not manually point it to the GXM.inf in your Matrox folder in the program files. When you select that .inf it should be digitally signed...the (not working) trial one they send out is not (look at about the 6th post here: http://www.widescreengamingforum.com/node/9215
5. If that does not work then come back and post what happens exactly and what your rig specs are.

'Luck

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Dipping bags at Mach1.9

Mach1.9pants: I've done everything what you told me to do - many thanks for help. 5040x1050 is now listed in GXM but when I try using it both Dell2007wfp monitors display pink out of sync kind of a garbage. Viewsonic displays its part of the desktop no problem. It looks like my Dell monitors are not compatible with 57Hz freq. If you guys help me to confirm this I'll post Dell2007wfp as not compatible model and sadly...sell my TH2Go.

And you are definitely pointing to the original GXM.inf from the downloaded PowerDesk SE? It sounds to me like you are still using the TRIAL GXM.inf, I have a similar monitor as you (2407WFP) in the centre and it works fine. It is only with the trial GXM that I get the out of range error (I have Dell E248WFPs on the outsides and they work fine with the trial GXM).
Go into Device manager and manually point the driver at the GXM.inf from your Program FilesMatrox Graphics IncPwerDesk SEGXM.inf.
This is a digitally signed driver, as you can see from the image below even though I have uninstalled the trial PD-SE I can still select the trial (unsigned) GXM.inf as it has been stored in the windowsdrivers folder somewhere. Make sure you are using the one with the Authenticode(tm) ;) next to it.

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Dipping bags at Mach1.9

Here's which driver I'm using. I think it's the same as yours. Is there any way to find out which frequencies I can actually use with Dell2007wfp monitors? Where is that 57Hz limit coming from? Thanks for quick response!

The TH has to run at 57Hz because there is not enough band width on the dual link dvi cable to do 5040x1050@60Hz (all the lower res run at 60Hz). Apart from what I have said I am sorry I can't help anymore, yours looks like the right driver. Buy another of the side monitors and sell on the Dell.....TH FTW :)

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Dipping bags at Mach1.9