No problems here today but my my mate had a virus in MSN on Wednesday.
After I had signed in, within about 30 seconds it popped a window up with a "here is a picture of you" and a link. The link while not a common URL wasnt completely dodgy. It had 550 in the link from memory. After clicking it threw a Open or Cancel window up which was when I noticed the extension of the file was a .exe
One guy did save it who didnt know a great deal about PC's and it has caused him major grief. Just something to be aware of.
The guy who originally had it, had left his laptop at work signed in for the night after going from work with a few mates.