Have a brand new build with exception of case, floppy & CD-ROMs. Seems I am unable to get WinXP to install. I have tried various CDs, Win98SE, WinXP Home Upgrade, WinXP Home full, and even the Windows XP SP2 CD. An attempt with the Home Upgrade resulted in "file 'hpt3xx.sys' not found. Failed. Restart. Have had several attempts bomb out with the classic 'BLUE SCREEN' ending. Problem detected and Windows shut down to prevent damage to computer. Followed by a list of possible causes. Ending with "TECH INFO. *** stop: 0x0000007E and next line *** pci.sys - address F748E0BF. Am going to give it another try later this P.M. (although I do not know why I should bother). I may have to go to MSI tech support - but am hesitant as I have heard it sucks. Plus, they are going to require me to disconnect everything and remove the m/b from the case which will allow me to read some of the numbers on that m/b that they will ask me for. It may be my only choice. Anyone have any brilliant ideas?? I have indicated system specs somewhere on this site and hope you are able to see them. THANX!!