Sh*t happens.
Another pointer you can take is that your borders are quite complicated to blend from and your left and right borders have some exotic textures that are quite hard to follow.

i would agree with spaz. there is no rule that you can't have extremely complex patterns, but i doubt people would appreciate it much. it is very hard to make a seamless continuation of a fractal pattern. perhaps consider using a fractal pattern that doesnt go up to the edges. do not make it the center of interest, but have it somewhere where no one will have to blend it. i think you will find that people will enjoy using your borders more if you do that.

i don't use fractals, but i'll take the advice anyhow :)

out of curiosity, how do you make them?

just photoshop - filters upon filters upon filters....eye candy, xenofex, kpt 6, & other tricks i don't like to divulge... Digital Glass secrets:)....