I have a similar problem... The reboot/shutdown functions lock up. The Standby/Hibernate functions just reboot my machine instantly. After several hours of testing, I traced the problem down to winDVD. The funny thing is that everything works fine before I install winDVD... so maybe the next version will fix this problem... other than that problem Windows 2000 runs very stable... (I've keep my comptuer up for 2 weeks now of normal use)...