Computer was working flawlessly when powered off on 3/27/10. On 3/28/10, power-up displays black screen, displays top 5 lines (NVIDIA etc through 5th line that says "Main Processor ...". As usual, almost instaneous. But then it goes into what I might call "super slow motion" displaying approximately 1 character per every 2 minutes. Example, when it displays the "CPU Testing" line, you can literally see each displayed character as it is displayed in slow motion painting each character in slow motion from top to bottom of each character. I've never seen anything like it in xx years of daily/multiple-workstation pc technical experience. After many lines (as usual) are displayed (all still on the black screen (never gets to Windows XP Pro logon prompt)), it justs sits there doing nothing. No error msgs ever display. It's a Systemmax Venture N4000 Desktop - Intel Core 2 Quad Q6700, Windows XP, 3 GB, 500 GB Drive, purchased brand new in August 2008. I'm thinking it may be the power supply - but I reckon it could be the hard drive. My next diagnostic step (on Tuesday 3/30/10) is to try booting from the OS Install CD to see how far it gets (and how fast it gets there). Hard drive is partitioned - all data on D: partition - once before I had to reinstall XP Pro OS and all the data was perfectly still there. Although, if need be, all data is backed up on MOZY. If anyone has seen this kind of behavior before or has any ideas, love to hear from you Thank you, BLA in ACY