Hi guys, new to the forums!

Sometimes while using Outlook 2003, I'll click on an Excel document attached in an e-mail and Excel 2003 will open, but the document will not. I have to Ctrl-Alt_Del, Task Manager, and end task. Go back to Outlook, click on a different e-mail, then go back to the original one I wanted to open. The document then opens just fine in Excel. Doesn't happen EVERY time. But I'd say I have to do this at least 10 times a day at work. Any suggestions??