Help resurrecting Fujitsu notebook

I took apart my laptop (Fujitsu Lifebook N3010) to clean the cooling fins, which were packed with years of dust. I pulled the processor and unplugged the CMOS battery. Also, I installed a used (formatted I think) hard drive, so there is no operating system. Upon reassembly, it turns on, but I have no display, and the CD drive just makes a clicking sound, although I'm pretty sure it is spinning. The CPU fan works. I'm not getting any beep codes.

Is it possible for the video display to lose its drivers and just not be recognized by the computer??
Or should the display turn on regardless of drivers, BIOS, POST, etc?
I plugged in a external monitor and got no signal.
I'm hoping to at least get a video signal so I can see what might be going on with the rest of the computer.

Any ideas?

Thanks, Bill

Hmm, I never thought about that. It's even getting cold (and not very humid) here in Texas. So Electrostatic Discharge may be a real possibility. I never touch the processor pins, but I fully understand the dangers of ESD, although I never have heeded the warnings
Thanks for the head's up on that, I'm going to take the laptop apart one more time and try to seat the processor one more time. I didn't mention in my first post that the processor was adhered to the heat sink using thermal epoxy (Fujitsu's idea at the factory). Not only that, but the CPU socket on the motherboard uses a socket lever to secure the processor to the socket (lever is pictured HERE). With the heat sink glued to the processor, the lever must be closed before the processor can be seated. So I'm not sure if the processor is making proper contact with the socket. I may try to use a knife to seperate the processor from the heat sink so I can properly secure the processor to the socket base, then use thermal compound between the processor and heat sink.
Confused? Basically, since Fujitsu permanently adhered the heat sink to the processor, I can't secure the processor properly to the CPU socket. That is unless, the processor can be secured to the socket, even though the lever is closed and locked already (before the processor is even seated).

I'm headed to Fry's to get a ESD wrist strap!

Thanks, Bill

Yay!