(https://s20.postimg.org/nwh4ut91p/dooooom.png)
I accidentally tried to upload a 150x150 sized image (instead of 120) as my forum avatar and now it won't let me have one at all! (laugh)
Punishment, that is! (laugh)
There are consequences for everything in life...lol
Luckily your handy neighbourhood administrator has fixed it for you.
I would recommend you just host the image somewhere else though, as it seems the forums' built in image uploader thingy removes the transparency from PNGs...
It seems to prefer gifs... Cheers AGA!