Just got a mail delivery failure notice that looked very suspicious. It did NOT have an attachment as they usually do. It was not detected by my normal virus scanner AVG, so I went to an online scanner and had it check my email and it found the Netsky P virus.
I would strongly reccommend turning off preview pane in OE if you are using it as I believe that you can get infected without even opening the mail as it is done in preview pane.
If you do not know how to do this, open OE and go to View/layout and uncheck the box for preview pane. As always, keep your virus definitions up to date.