My lap top PIII 600, 128Mb, Rage Mobility Pro 8Mb chipset, with 6.2Gb Drive, by Enpower, runs with Win 98SE. It has never failed that bad but I do worry about how hot it gets. Its always getting very hot and the fan is always kicking on. I've also noticed I must scan and defrag more often than on a PC. If I don't it'll go unstable. I've also noticed that if you reach the 1/2 way point on drive space it tends to hang up so I keep the drive free of extra files. Good luck.