PS I'm sure it wouldn't have to be porn sites for malicious software to be involved, it turns up in lots of places...
Hi Helen. The above quote is correct. My mate at work recently went to a screensaver web site to download a free 'Waterfall' saver and he picked up something nasty from that site.
It could come from anywhere if it is a malicious bit of code that is causing the problem. Hope it sorts itself out for you soon.