I want to display the real-time data using OpenGL and is woundering if Windows 2000 Pro on PIV is good enough for such task. The uptime required for the system is 1000 hours. Once I read somewhere that there is a conflict between windows internal colck and CPU that causes a need for reboot the system. Due to this clock synchronization problem W2K machine have to be rebooted after some days ( I dont remember the exact figures). Please advise me which OS should I choose in real-time graphics display. If there is any other issue with W2K or Linux, please tell me that I'd be able to select a better solution.