Windows

need a little more info to work on this one,
what do you have running on it?
what's it tied into, domain, workgroup,
what kind of hardware is in it
Is all the hardware new or tested?
Has it been running before and just started doing this?

Thanx for trying.
Running all kind of small office-software. Like MS Office 2000, cable-internet, NAV, Act!, Babylon. I've checked those, don't seem to bother.
It's the server in a peer-to-peer with one other notebook. The problem persists with network disabled.
A colorado tapestreamer and an external gadget to make it possible to use your phone to dial out with tapi, it dials the number in Act! for instance.
Nothing new, hard- or software, all tested, used to work smoothly.
It just started two weeks ago, the user says nothing althered. No reason not to believe him actually.
What's your shot?
George

100% is not necessarily a problem. Do your apps keep running OK (sounds like 'yes')? Are there any 'real' problems?

Some apps and system services will use all of the CPU resources available, if they need it. When another app/service calls for CPU, this 'hog' will graciously relinquish some resources - no problem.

On the other hand, if your system is actually acting up, then you need to identify which app/service is acting up. Have a look at the "Processes" tab in Task Manager, and contactthe s/w vendor.