WHY the same macro runs so slowly on a different but faster comput

[Guest]

This problem kills me!

I have a macro to clear contents of a spreadsheet. When I run it on my slow
laptop, the macro was executed very fast. When I use the macro to clear the
same spreadsheet on my newer and faster desktop, it is amazingly slow. The
usage of CPU by Excel itself is 50%. There is no formula or events inside the
spreadsheet.

Is there any particular with the desktop? Virus? bad memory?

 

[Guest]

same version of excel on both?

 

[Guest]

Yes, the same version of Excel 2003. The same macro. The same spreadsheet.
The same network