well, to change your power scheme, go to Start > Control Panel > Power Options and in the first Drop-Down list, select Home/Office Desk, although I don't see how it could affect anything. but try it anyway.
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Non Power-of-Two Render Target Support </div></BLOCKQUOTE>
I had the Non power of two render target support error too and anfter days of loading new drivers for everything still no joy. Then i downloaded the 1.31 patch and received the error msg that the patch was not for my version so then i dowloaded the 1.02 patch and the error is gone ! YIPPEE.