Every time I get an achievement that pops up on the top of my page I can't click on anything. When I do click on something a blank page pops up on a different tab and my anti-virus goes nuts. I found this doesn't happen if I refresh the page w/out clicking anything, but it's rather annoying. Is there something I can do to keep this from happening? I really don't want my computer to break because of some virus hiding in the achievements.

It's much more likely that the virus is on your computer already. Run an antivirus to see if you can find it. You might also consider a anti-spyware or anti-ad-ware program too.

No, I no longer experience this. (Sorry I took so long to reply, I've been moving)