Application Profile Page loads blank

Anyone had this problem before and knows how to solve it?
It worked at first, then all of a sudden its loading only blank.

Canvas-page is working fine - so I dont really know what the problem is

Could be many things. I have had the problem and it drives you crazy. Could be iframe/fbml, could be your invisable to non-fans part, if you are using it. There are different problems with each that has to be worked through. Could be you did not do something right in your application for the tab part, maybe added the / at the end. Thing is, there are a few things that brings up a blank and it is hard, you just have to bang your head and grind through it part by part to fix it. It does not work because you have something wrong, that we know, just what is it. Believe me, I have messed up all the above. It happens.

Darn... I cant find the problem... Its a copycat of an older app I have - all the data is the same - the old one works fine - the new one doesnt... Damn FB - they should get their shit working finally!

Shitty facebook-programming...
Had to start a new application - used same settings - works!
They are a bunch of idiots that dont know their shit! more than 100 Fans sent to shit!

i know it can be very frustrating some times but all we can do is move on and do it one moe time.... fb bace programing is not good that why 1000ss of bugs in it