Has anyone else know of any problems with Excel 97 SP2 and running hidden on many rows? I've got a number of worksheets in a workbook that I would like to have certain rows hidden. So I wrote a VBA macro to test for each row to be hidden in each workbook and then to hide them. Yet once I hide the 1,500'th time I get an error of Out of Memory error??? Baffles me as you can click through the error messages and it completes. Thought you have to reboot because Win98SE has in fact run out of memory and can't even reboot. Not sure if it also matters yet running Novel client as well.