Excel 2002 Crashes When Enabled Macros & on Save Event

T

TR

we have excel worksheet with macros, we validate data using vba macros
regular expressions and update cell colors based on validaty of the data. in
some of our machines on certain user profiles whenever we save it excel is
crashing.
we changed font color & background, it seemed to work little, but entering
into debug mode at message box level.
Not sure what causing this problem, same spreadsheet works in other machine
with the same version?
Please let me know what areas I can look into to fix this problem.
 
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