are you using a download manager for the patches?
and this also from DAD....
Do you smoke? 
The last question is not a joke at all, because you shall be surprised to know that if you do smoke then clean your CD lens every day, and I mean every day, because the freaking technology cannot tolerate nicotine skin on lens; use 99% ethyl alcohol on the tip of an ear cleaner and you shall be very happy thence after. 
I would suggest a total re-install...
and re-download another patch....
the one you got, 
may have "picked" something up on it's way to you......