Why is everything all mega-pixeled??

[duckzgyrl]

So I downloaded limewire a couple weeks ago and eveyrtime I opeded it, it would go all megapixeled and to get it to go back to normal I'd have to log out and log back in. So I uninstalled it because I asssumed it was a gliche or something when I downloaded it, but when I reinstalled it it did the same thing. My roomate downloaded limewire onto her account on the same computer and it does just fine. SO VERY CONFUSED!!!!!!!!