no signal to monitor until windows welcome screen

[cspurlock]

Hi guys,
New to the forum and am really hoping you guys can help me out. Just put an HTPC together with this motherboard
ASUS F2A85-M PRO Micro ATX

My problem is that if I connect the computer via DVI to a display it functions normally, but when I hook it up via HDMI to my Flat screen, it doesn't show the splash screen that gives you the option to enter bios. The screen just stays black until the windows welcome screen(win 7 64bit) comes up, then it acts totaly normal from that point. When I try to press the del key during the boot, I believe it is entering the bios, but the screen remains black so I can't see anything. I am guessing that the MB is not sending the signal to the Flat Screen until it loads windows, but can't find out anywhere that confirms that or what to do in order to resolve it.

Any ideas???
Thanks in advance,
Campbell

 

[Fluffy]

Try updating the bios, or there maybe a setting in the bios to look for HDMI first.