If this don't help ,try changing the defalut infobar image size 144x272 , try some other dimension that divides by 8 and 16 . Smaller dimension.
After trying last night I found that neither worked. I Got a 128x128 image to work but no larger.
I'll have to find someone with a working opening and try that sonmetime (if I find one lol)
This is like an itch you can't reach... :)