corrupt perfmon datasources list

Hi,

when I start "perfmon" under my windows 2000 (de, workstation) and then try
to add a datasource, not the common list of datasources is displayed
(server,
processor, ...), but only a list of numbers: 1150, 1300, 1400, ...

I have new installed my system a few days ago and installed a lot of
applications (delphi, office, ...), so I have no clue WHAT leads to that
problem.

Has anyone an idea what to do?

Thanks a lot,
carsten willems