VBA in Office 2004: "procedure too large" error

[jvbeaupre]

I use VBA extensively in Excel on both a Mac and a PC. Recently I added
a lot of code to a particular worksheet and it works fine on the PC,
but when I try to execute on the Mac, I get a "procedure too large"
error.

I use Office 2004 for Macs.

Is there anything I can do to avoid this problem? Will upgrading help?
Can I reorganize my code in such a way to mitigate this problem? What
determines the boundary for this error?

Thanks,
Jim