Hi,
I have a 12 inch Powerbook G4 1.5GHz (1.25GB RAM, 100GB HD). The trackpad was working fine until yesterday, when the trackpad stopped responding to finger movements for several seconds, then after come back to normal. Then it stops responding again after a few minutes, and it goes on and on in a cycle. I am using Mac OS X 10.4.4. I don't know if this is a problem with the trackpad or the trackpad driver. I was having a similar problem in Panther until they fixed it in a later update. Does anyone have any ideas about what could be wrong? Thanks.