SAVING A 'PNG' AS A 'JPG'
Do you want to use one of the avatars on a messege board that only allows JPGs? No problem! I save all my avatars as PNGs simply because they turn out clearer, but I know a lot of messege boards don't support that kind of file. So, to fix this problem all you need to do is convert the PNGs to JPGs. Here's how:
1. Right click on the PNG image you want to save and select 'Save Image As'.
2. Save As Type >> All Files
3. Write ".jpg" (without the "s) at the end of the file name.
4. Click the 'Save' button and your upload your avatar to any PNG hating messege board. =P
(NOTE:I've only tested this at the official Switchfoot messege boards. It may not work in other places.)