I dont get it - where do you download the client from?
Mine didn't say anything about any corrupt or wrong files when i installed. No problem at all, went as smooth as ever. it was downloaded from this house, over torrentz.
I think the issue lies with my isp who capps all download speed in peek hours - Ive had simular problems with them before for this issue.
However on a brighter note the patcher is now checking all my installed files - hopefully something will get sorted