How to measure frame rates?

Can someone please tell me how to measure frame rates?

Thank you

Hit Ctrl + Z together

Thanks

Thanks to CDR for putting me right

Should of said Shift and Z

Your welcome.
We are here to help each other and it was my pleasure.

Thanks

Shift Z works much better

Athlon 2400+, 512m, 9200 11-13 f/s (emulating hardware reviewers standard test flight) (FS2004 automatically reduced graphics settings)

Same machine but 9800 SE, 17-19 f/s with much more graphics detail

P4 3g, 800 fsb, 256m, 9800 PRO 35-55 f/s

Bring on some more memory