Plug in a mouse and see if the problem lies only in the trackpad.
Originally Posted by jroller
yikes... not sure what to tell you. There is an iBook logic board replacement program. Yours may fall within the range of serial #'s if your logic board is failing
The iBook REP was for dual-USB iBook G3's, and it expired about six months ago.
I would call up the AppleCare line (1-800-275-2273) and have them ship you a box. If it's under AppleCare, they'll get it taken care of. Make sure to back it up before you send it, though.