No bios details on bootup

[cupajava]

I loaded MCE 2005 on a little while ago and didn't have a problem accessing the bios after the install. Suddenly, my monitor isn't being initialized until the Windows logon screen appears and I no longer can view or enter the bios details during the bootup process. The pc seems to run fine once Windows loads up. I just can't get into the bios anymore. Anyone heard of this problem before? This is happening on a MSI NEO4 Platinum.