I signed up yesterday. I don't have a desktop computer any more and I am not sure how much I can contribute with my little laptop, but every bit counts, I guess
I really wouldn't recommend running it on a laptop. They don't have the cooling capacity to run the processor at 100% all the time. Two exceptions: If you can set it to use, say, 60% of the processor and no more, or if you have a laptop designed for gaming. I would feel bad if you broke your computer by running Folding@Home.
thanks for the concern ... it's not that bad actually. After 24 hours the CPU temperature (second generation i5 core) is at about 70°C, according to Intel specs 100° would be the maximum temperature allowed. The bottom of the computer is just lukewarm