Okay, I'm glad we cleared that up. The laptop issues are very strange. For a brief second or two, every now and then (but it's like during the whole day, at least once in 15 minutes, making it very annoying), whatever program it is that I am running stops responding. Again, it stops responding for about 1-3 seconds, but it's really annoying. It does not matter if it's Firefox, Explorer, Skype... they just stop. And it is nothing special that I am doing with those programs to cause them to stop responding; they just do.
I did extensive research and found many folks with the same issue. Apparently, the possible fix is switching from the AHCI mode to IDE in motherboard BIOS. I did that, but then Windows 7 fails to boot completely.