42 in lcd as second monitor with ATI 2600hd

Everything with this setup is working fine except I can no longer completely get the 42in to display edge to edge. If I use the slider in the ATI ccc scaling options "which I normally use". The screen stretches mostly from top to bottom and does not fit horizontally. I am using the windows 7 beta driver from ATI.

Anyone get this type of setup working?


Driver Packaging Version 8.56.1-081104a-071877E-ATI
Catalyst® Version 08.11
Provider ATI Technologies Inc.
2D Driver Version 8.01.01.850
2D Driver File Path /REGISTRY/MACHINE/SYSTEM/ControlSet001/Control/CLASS/{4D36E968-E325-11CE-BFC1-08002BE10318}/0000
Direct3D Version 8.14.10.0630
OpenGL Version 6.14.10.8304
Catalyst® Control Center Version 2008.1204.655.12336

This is what Ive been able to find out.

I can get the 46" LCD to work full screen only if I set windows display properties to use one display .

ie) " show desktop 2 only "

If I set the display properties to "duplicate these displays" I cannot fill the large 46" screen edge to edge , even with catalyst control.

So based on all that I think its a windows issue.

Anyone else having this type of issue?

The thing is that in Vista I didnt have this problem. Catalyst control was able to make the adjustment no problem. I think Windows 7 is force feeding the wrong display info. I could be wrong I'm not sure.

im using the windows 7 beta driver.

It works fine when I select the TV as the only display. Its when I select to duplicate the displays from windows properties that I have a resolution issue.

If I have it set to duplicate and I click identify,this should place a number 1 and 2 on separate screens it shows 1 and 2 side by side on each screen. I dont think thats right. This tells me that its not using 2 different resolutions its only using one. There fore my large screen is not filling edge to edge.