Computer won't start

[TruFloridaGator]

Had just finished cleaning up some viruses on a friend's computer. Finished that up and went and installed Norton Internet Security 2005. It finished installing and then it asked for a restart. Now the computer won't get past the BIOS screen. I can get in to the BIOS setup, but all I hear if I go any further is what I assume to the the hardrive making a clicking sound every 2 seconds or so. Is the hard drive dead? This is a laptop as well, so I don't know much about the hardware aspect of it.

Thanks