Anyone have a problem with imageshack rouge popups?

On my dad's computer with windows XP, while uploading images with imageshack(dot)us, he keeps getting popups that say his computer is "infected" and needs to download antivirus XP 2008/2009. We keep clicking the X but the windows pop up again and again. This problem doesn't occur from surfing any other websites, just imageshack. We found a few rouge files on our computer which the scanner detected and removed. Yet those popups persist only at imageshack. We repeated the steps and are clean with no incident on other websites.

Have you been getting this too? I Googled this and there were a few isolated incidents like this. It appears that anyone can advertize on imageshack and those scammers are putting up popup ads that redirect you to download rouge software. I usually get a popup ad on imageshack. We are done with imageshack and will try other free image hosting servers/sites/providers.

Make sure you completely clean all temp files / folders. That Antivirus XP 2009 ia a HUGE pain in my @ss... I've seen so many computers come in the door infected with that garbage... but I've never been able to determine where the hell it's coming from. Whatever you do, DON'T click on it.