1 min black screen on cold boot??

[homer_09 0]

I have a new pc, and installed windows xp pro sp2 (with all patches).

 

recently, there is this weird problem. when i boot, it hangs for about 1-2 minutes right before the windows XP logo with blue progress bar. so basically, i get a blank screen, then the windows xp logo fades in and everything boots normally.

 

if i restart, there is no hang, its only if i dont use the computer for a bit.

 

whats happening?

[Wilhelmus 1]

Check the BIOS settings for booting order. Try putting your hdd first where the xp is installed.

[homer_09 0]

ok i moved it to first boot device, and disabled all others.... no change

[homer_09 0]

UPDATE:

 

i've realised that it only happens from a shutdown. if i shutdown my pc completely and turn it on 5 sec later, i get the black screen. if i restart from windows, instant boot...

 

i've also noticed that my cd-rom drive is not detected, unless i reboot.... this must be related?