Well, I installed Windows 98SE on Friday and I have not had one single BSOD or illegal operation. I am quite surprised and happy to see this. After all, many folks including myself have said that nforce chipsets only run stable on NT-based OSes. However this isn't true anymore, but I did something differently this time when I installed. I installed a Silicon Image Sil 3x12 (3512) PCI SATALink Controller (has a built in bootable BIOS). I then installed Windows 98 from the CD and no problems whatsoever. I really wonder now if it has something to do with the PATA controller or PATA controller driver. I installed the latest nVidia nforce drivers, but only installed GART, memory controller driver and SMBus. The "Standard Dual PCI IDE Controller" from Microsoft is listed in Device Manager. System specifications: AMD Duron 1,8GHz Shuttle AN35N400 motherboard 1GB RAM (non dual-channel motherboard installed as 512, 256 and 256) ATi Radeon 9600XT 256MB AGP card (using 32MB AGP aperture in the BIOS) Creative Ectiva PCI sound card with WDM drivers and 98SE OS patch from Creative Sil 3512 PCI SATA controller card (using the BASE driver, not the RAID driver and also the latest IDE BIOS) Seagate 160GB SATA hard drive Samsung SH-S182F DVD+/-RW dual layer drive USB card reader USB keyboard, USB mouse USB data cable for cellphone (Prolific PL-2303) In the past, each time I tried to install Windows 98SE on a PATA drive using the same hardware, Windows would BSOD if my USB data cable was plugged in while booting into Windows. I used Windows 98 Service Pack 2.1a then too and still had BSOD. Now I have zero problems. Perhaps it has something to do with PATA controller on nforce boards that won't work correctly with Win98? Last time I used an 80GB Seagate PATA drive, but it's a good drive (no bad sectors, passes all drive fitness, scandisk and other hard drive utilities). If the solution really is to use a SATA PCI card, then that is a good idea, because newer hard drives are mostly SATA. I hope others can try using the Sil 3x12 PCI SATA card on their nforce chipset motherboard and see if this solves their instability problem under Win9x. Best regards, Paul