Stuffit Expander Problems.. Please , Help !, My expander is crazy.. Options

[3Head]

Hello everyone !
I've got a problem with Stuffit Expander on my Mac . Whenever I want to expand a file , I drag a file into a program and..

"The application StuffIt Expander has unexpectedly quit . The system and other applications have not been affected"


It happens every time I want to expand sth. I did repair permissions on HDD's , but the problem didn't dissapear . What should I do ? Maybe you know any other expanders ? I can't install almost anything ! Please help.

Thanks in advance;