I cannot install Windows XP (either the original or a disk slipstreamed with SP2). Everything works fine until the install program starts "Installing Devices". When there are 34 minutes left to go in the "install", the computer "freezes". Yet, with an identical configuration (I use mobile racks to swap hard drives) Windows 2000 installs flawlessly. I used the same hard drive for this "test", to make sure there wasn't something wrong with my "brand new" Seagate disk or disk controller (Promise TX2 100). The Microsoft Support database has a reference to this specific XP install problem: http://support.microsoft.com/default.aspx?scid=kb;en-us;828267 I've detached all my USB devices except two (HP Scanjet Scanner and Logitech Quickcam 4000). I am disabled so can't reach those ports. I have tested my memory with MEMTEST86. The same problem occurs with two brand new 200 GB hard drives, one a Seagate, the other a Western Digital. I've examined the files that were created during the install, but cannot find which device is causing the problem, I suspect it might be my graphics card, but XP is supposed to support the ATI AIW 8500DV. I've tried whacking F5 during the install and have selected "Standard PC", but that doesn't work either. I created the "Ultimate Boot Disk for Windows" and it works flawlessly -- seeing all my devices -- although I can't seem to get networking going -- I admit I'm "out of my league" on that problem. System consists of: ASUS P4PE motherboard with Intel 2.53 Pentium 4 chip ATI AIW 8500DV graphics card (on XP's "supported hardware" list) 1 gig RAM 2 mobile racks 2 DVD burners (LG) 1 USB DVD burner (LG) 1 DVD/CD reader (LG) 1 floppy 3.5" drive 1 USB hard drive 1 Logitech Quickcam 4000 1 HP ScanJet scanner The hard drives are connected to a Promise 100 TX2 controller (secondary), while the CD/DVD drives are attached to the primary controller on the MOBO. When I install XP, I load the ULTRA.SYS driver for the Promise controller to get the full capacity of the drives. I have a Broadcom network card on the MOBO and use DSL. (DLINK Router) I hope SOMEBODY can help me.... I'm going bonkers!