Problem with cataclysm launcher installation/update.

[Salamandolo]

Patch 4.001 has been out for a while but thanks to my limited South African internet it took me a few days to download the 5 gig patch >.>. Well I finally downloaded it, and now it says I must update my launche,r so. To explain more clearly it looks like this, I'm in my launcher and the loading bar has three sections, the first is setup, 2nd is available and third is playable. Sadly my loader only reaches the beginning stages of available and then it says I must run a repair. So I go to my wow folder and run the repair exe. and I try again, and it does the same thing. Plz help I haven't played in over nearly 2 months.Reply asap! plz