ExcelBanter - Problem running macros in Office/Excel 97

I created a complicated spreadsheet with about 40 text boxes that have macros attached to them. I wrote one version in 2000 and converted it to back to Excel 97. The macros crash Excel 97 when clicked.
I re-wrote the program on a computer with Excel 97 and it does the same thing.

Is there something wrong with my code or is there a bug in Excel 97 with textboxes and attaching macros ?
It is random and doesn't behave the same every time.
Both programs work fine on a computer with Office/Excel 2000.

I've possibly posted this before but I can't find where it is on here. Hopefully this time I'll find the posting.
This is truly a great site.