I took my 12 in PB into my local reseller to have the 4200 rpm 40 gb hard drive swaped out for a 5400rpm 60gb hard drive. The first thing I noticed when i got it back was that the case didn't lie flatly on my table. either one opposite corner or the other would be about 2 mm off the table. I know my PB and that was not how it was when I dropped it off to the tech. I called and he swears the procedure couldn't have warped the case, and even if it did it wasn't their responsibility. Anyone ever had a case warped from this procedure? Any ideas what to do?