Thanks to everyone for the suggestions. I'm trying a new strategy this weekend. I managed to pick up another of the same model PowerBook on the cheap because it is also in need of repair (in other respects -- the display works fine). So this weekend I'm going to perform an operation that will hopefully give life to a new Franken-TiBook that is better, stronger, faster, etc. (And has more memory and a bigger hard drive, to boot...) :) I'll begin by swapping out the inverter board and move on to more serious replacements from there, if necessary. I'll let you know how it all turns out. Thanks again.