well, my PC at work makes me feel sick, but i think it's the CRTs that do it. my TiBook has never made me sick...although, my apple CRT (clear graphite...you know, the one that has a lawnmower engine inside...hehehe) never made me sick...than again, it could just be my job.
oh, yeah. i have a head cold...so that could be it. 😉
peace.