Windows 98 SE, on an ABIT mobo with celeron 466.
The motherboard keeps time OK. If I leave the machine on, the windows clock loses a lot of time. Today it lost 1/2 an hour in about 4 hours. When I restarted the clock was showing correct time.

I've got norton antivirus2k, matrox powerdesk and a microsoft intelleye mouse driver running in the background.

Any ideas what is causing this?