i have a dell inspiron 9100 laptop. 1 gig ram, 100gb hard drive, 2.8ghz pentium 4. i just installed the hard drive. basically, everything is slow as shit. i cant watch movies on it because it lags WAY too much, the picture just jumps around. same with streaming video on the internet. even the internet is laggy. what are some possible problems? note that this hard drive has been in for a day, so spyware/viruses are out. also, this is the same reason i got a bigger hard drive, as it was the same problem on the old one.