Vista Start Up Problem: Works on Restart

[Vio1]

Im having a weird problem. When my pc is off for a while, and i turn it on, the bios posts and it looks like it will enter windows, but then the screen hangs on a black screen. I press the reset button and the computer restarts and windows loads up no problem.
I only have this problem when my computer has been off for a while, and then i start it up.

I tried both vista 64 and vista 32 and its happening with both.

New hardware:
Asus motherboard (shown below)
corsair 750w psu

 

[Know Nuttin]

Does it happen on lower oc/stock speeds?

 

[Vio1]

yes.

 

[Vio1]

any ideas? its really annoying. Could it be some setting in the bios?

 

[Trap05]

Is your bios up to date?

 

[Vio1]

will have to check that out. not sure

 

[Quick69GTO]

You have a piece of hardware that's not initializing on a cold startup.
Look at the hard drive (or any additional hard drives) that may not be starting up.
Reset all the connections on them and possibly change the cable.
It's a possibility the PSU is not providing power to the rail the hard drives are connected to on first boot. Listen to hear if they are spooling up on first boot.

Good luck!