Error: Code Execution Has Been Interrupted

Good day everybody,

I have Excel 2003 and 2007 on the same computer. If I run a macro on any version of Excel, I get the following message:
Code Execution Has Been Interrupted
I looked for a solution on line, and one solution was to put this line of code in the macro:

Application.EnableCancelKey = xlDisabled

I tried it, but this would mean putting that line in every macro.
Some person suggest rebooting my computer (I haven't tried it yet), but it is not guaranteed to work.
Does anyone know how to fix this bug?

Thanks,
Xrull