Problem in Firefox 3 using FlyakiteOSX v3.5

hi all

my problem with Arabic font in FF3

the word letters apart!

I tried to use FF3 with another PC (not having FlyakiteOSX v3.5 theme) and it works OK

so the problem in something in the theme when you use FF3

here's a pic to clarify the problem

plz, try to figure out this issue, coz I'm going to lose my mind

I CANNOT eliminate one of them "FireFox 3 AND FlyakiteOSX v3.5"

Thanks...