Please help

I just built a computer for my friend. AMD 64 2800 2x256 2700, 400 Watt psu, Radeon 9600 pro the motherboard is an AOpen AK86-L. Whenever i bootup into windows(XP Pro), 10-20 seconds later, the moniter goes blank. The problem started occuring after i installed directx 9.0c, and the latest Catalyst drivers(i also tried the Omega drivers). I am in safemode right now and its working fine. The moniter led just blinks as though it was never plugged in. I have a really bad feeling that something may be wrong with the videocard, and i don't want him to spend infinity more money on the computer. Any suggestions will be extremely appreciated.

<font color=purple>Buying Top-of-the-Line is for losers with money to burn</font color=purple>

yes, SP2 if it matters

<font color=purple>Buying Top-of-the-Line is for losers with money to burn</font color=purple>

You may have a problem with the DEP feature in A64 and in newer Intel CPU.

Look <A HREF="http://www.anandtech.com/news/shownews.aspx?i=22833" target="_new"> here at anandtech</A> as they tell a solution to this

-Always put the blame on you first, then on the hardware !!!

Can you uninstall SP2? The last time I heard of this problem, it went away when apre-SP2 restore point was used.

Could it be the videocard is running at a too high refresh rate for your monitor to handle ? Try forcing it manually at 60 Hz or something ridiculously low.

= The views stated herein are my personal views, and not necessarily the views of my wife. =

Certified non beta ATI drivers from their website. The moment I installed them and restarted the monitor would turn black couple of seconds after desktop load.

Damn I'm drunk. But take another look. I won't mind till I wake up.