Problems w/Mail (not Responding)/Internet Connect keep


1) Since upgrading to Tiger Mail just sits there - Checking status using Force Quit shows Mail as Not Responding. If I Force quit & then restart mail - the messages are there.
2) Internet Connect keeps popping up & then closing by itself about every minute.

Any Ideas?

Using: MacOS 10.4.1, Powerbook 1.5gHz, G4, 2gig. ram