Ah, good, glad you found the problem.

I will say that the only times I've ever had serial troubles is when I had a frayed serial cable. Since that's the most obvious first-thing-to-check, I sometimes assume that it's already been ruled out by the time I see the question here. Either that, or I get one of those "it can't be the cable, it just worked yesterday" responses. (It's gotta fail sometime, right? )