Shoutbox

So I tried downloading the Oversized Avatar plugin..

The first time I installed it had totally blacked out my PC and I had to do a system restore to fix it.

Now I tried installing it again and It doesn't seem to work. I have it installed in the right folder I am sure of that.. since I can access it in the Plus! tab but I cannot see the changes (A.I I cannot see a big Avatar.. )