I don't use Excel very much, but today as I was using it to compile information. I did a simple "copy" command on one of the cells and I got this error. After the first dialog, 4 more popped up right after it. It doesn't do it every time, but it did it a number of times and it was irritating. It's not like it didn't issue the copy--the information was copied onto the clipboard; I just don't understand why I'm getting this error. Any ideas why I'm getting this error? Here is a screenshot: As you can see I have plenty of free RAM, so that shouldn't be the issue.