bad laptop keyboard solution
If your keyboard is seriously mucked up, here's a reasonably quick solution.
Get a small form factor usb keyboard. I bought a nice one at Fry's for under $20.00. Make sure it works with your setup. If you're lucky enough to have a guide to your laptop that explains how to remove the keyboard, use it. Otherwise, turn it upside down and start removing screws until you can get to the keyboard connector <g>. Be sure to establish some kind of system so that you know which screws goes where, they will probably be of different lengths, thread, etc. The keyboard will almost certainly connect to the mobo via a connector that can be slid right off. Slide it off, put your laptop back together, and use the external keyboard instead. Mine fits right on top of the dead keyboard on my laptop, and fits nicely in my laptop bag. I did this to eliminate random spurious signals from the built in keyboard until I can find an installable replacement (or fix the old one with some unknown voodoo technique).