I was pulling my hair out, untill I found this article. I couldnt get CS to start. I followed your directions and now it works fine. I did the " change your time zone " thing, and that didn't work, and then I was only deleting one of the files, and not all the preference files. I had re-installed probably 7 or 8 times. If people do what this piece says, I bet it would help alot of them..