Hmm, weird, I would suggest you try to reinstall WinRAR then.
I also have another idea, but I would need to contact you personally, like over PM. Problem is, you aren't registered
So if you have ICQ or something like that, lemme know.
Email is don_andy at gmx dot de if you don't wanna post it here (sorry for not writing it properly, but I'm getting enough spam already, don't want to take any risks
)
Oh, yeah, ICQ number should be in my profile, but here it is again 147056661. I think I might have a number of accounts for other IMs, too.