Question : excel range.find is taking 10 seconds

I am using a vba (excel 2007) range.find function to find a whole match for a token like "ESS12345" in one column of  a spreadsheet 30000 rows.  If I code this on another PC, it is virtually instantaneous to determine a match or not, but in my current application, it takes 10 or so seconds per token to search the rows.  Why could it work so fast on a slower PC than in another faster one?  How can I speed it up?  Excel is getting 99% of the CPU when it runs.

Answer : excel range.find is taking 10 seconds

Try starting Excel in safe mode

"excel /safe" from start->run

That'll disable all addins.

Is the computer running normally in other programs.  Are the 2 computers comperable in terms of processor and ram?