I have XP (newly installed) and ever since I opened a particular excel document that a friend sent me, the cursor will not respond in any excel document. What happens is that when I move the cursor, it will only highlight cells. I then have to ctrl-alt-delete to end Microsoft and when I do THAT, I get a message that Excel Can't Quit but then it does. Today I opened Excel, got the same problem again, so I opened Excel again and closed the other one from the bottom toolbar (before I started working in the new Excel that I had opened). When I closed the other Excel, I got the "Run-time Error 50290: application-defined or object-defined error" message.

I need help. I don't know what to do to get this bug resolved. Any suggestions would be most appreciated.

Thanks.