When stepping through code using F8, macro automatically runs at Workbooks.Open line

Thanks MarvinP. I read the MS article, though I don't fully understand all the technical parts. I tried your suggestion and it's definitely going to save me from a lot of frustraion. But I am now wondering why this would suddenly begin happening to my code? I have been writing VBA for years and don't remember having this issue. Does it have anything to do with Windows 7. I don't recall if this started happening immediately after I got a new work laptop with Windows 7 back in November but I don't have the problem on my WinXP computer at home.