I just built a computer, an ASUS board P4S800, Pentium 4 2.8gHz, WD80gb HD,512mb RAM, Lite on Combo drive, Antec Case, ATI Radeon 9600, 56k modem. Ok the computer works great with one glitch, from a cold start it goes through post and looks like it will start up but then says insert boot disk or modify boot settings. I can restart it and Windows XP will then be booted and everything is fine. I believe this could have happened with the installation of the modem but still I am not sure and have tried changing bios boot preferences. This has no bearing because whatever I put, restore default, etc. the restart causes XP to load fine. Please, if anyone could contribute I would appreciate.