rendering problem in IE 6 / 7 / 8

[daanial]

First of All thanks a lot for your great script.
anyway: I tried all the solutions here and I couldn't solve
problem I have in IE when I am using corner plug-in and in some corners there are some problems which I can not solve:
you can check this with IE
http://huraman.com/tehranr/

Thanks a lot for your help
Danial