Windows 7 - Graphics Card Error in WMC all of a sudden

I am getting a playbackmessage on my HTPC in WMC saying:

"Video playback is not currently allowed. This is often due to incorrect drivers for your graphics card, because the card has less than 64MB of memory or because the card id not DirectX 9 compatible."

I am using a Saphire Radeon HG6750. Which should be more than fine. And the onboard card on my Motherboard should also be fine.

Everything was working fine. I have been fiddling with my display options as I have my HTPC feeding three 1080p TVs via a Gefen HDMI switch. Finally got it so that all three TVs are displaying at 1080p and then my playback errors start.

[As a side note, I have been noticing that when I remote in via a laptop that I get AMD error messages. I think this is regarding my onboard card. When you remote in, the HG6750 does not show up in the Tray. It defaults to the onboard card]

How to I check to see:
1) What graphic card is acutally running?
2) Whether there are problems with the drivers

Thanks

Wondering as well if remoting in using a 32bit version (Windows Home Premium) into a 64bit verson (Windows Pro) causes any confusion with the target HTPC's recognition of its graphic card. That said, both graphic's cards should be fine as I am only trying to run ripped DVD (TS_Folder) in WMC.

How do you update the onboard graphics card drivers on the Motherboard?

Thanks

I just remoted into my HTPC. The following error was also displayed:

"No AMD graphics card driver is installed or the AMD driver is not functioning properly. Please install the AMD driver appropriate for your hardware"

In Device manager everything looks good. I have a

Display Adapter - AMD Radeon HC6750
Sound and video game controlls - AMD High Definition Audio Device and Realtek High Definition Audio

I updated the HD6750 right after I picked up the HTPC last week.
I updated the Realtek last night and it fixed some issues I was having using TMT5 and DVD/Blu Ray playback. Problems started this morning.


My mother board is a Gigabyte GA-A75M-UDH. It is not clear to me if the AMD message is for my HD6750 or if it is related to my onboard card.

Should I simply uninstall my HD6750 driver and then reinstall and start from there?

Thanks

Check the motherboard BIOS to ensure that the PCIe graphics are set to be innitialized before the iGPU

How do I do this?

making incorrect BIOS settings can leave you with a broken system.
I am not willing to hold your hand during this proceedure.

Thanks I will look elsewhere.