Hi.

I uploaded a avatar to lfsworld but it shows up white. It is 95x95, 2,5Kb, jpg. I have also S2 uppgrade.

Any ideas what to try?

Probably it's not uploading correctly. Try in another browser or something.

Try resaving into PNG, just like I did

You will be able to add transparency, too.

No, there's really some kind of a bug.
http://www.lfsforum.net/showthread.php?p=1103101#post1103101

Next time post into the bugs forums, please.

I resaved mine avatar into .gif, it's 32 colors, and 2.7 kb, it works fine.

Your avatar is default lfsw at the moment.