How to cool your mac!

With Powerbook G4, MacBook and MacBook Pro there is an issue that they get pretty hot. Basically impossible to hold on your legs when doing something processor intensive.
I googled for few tricks:
- to modify .kext files More detail description - PPC
- Utility to control the fan speed - Intel based

PowerBook G4 > MacBook

Things I will loose:
- keyboard illumination
- PCMCI slot
- 15" matte screen
- Firewire 800 (never used)
- modem (never used)
- S-video (never used)


Things I will get:
- 4 times faster 2 core Intel
- 2GB RAM
- Apple remote
- integrated iSight camera
- SuperDrive DVD writer
- 400g lighter
- Can install windows (need sometimes)

Mail keeps asking pop3 password even if saved

Seems to be familiar problem for most
So it seems that Mail does not recognize the fact that there is something wrong with network. It prompts the same "enter password" dialog saying that you password was rejected when there is bad network connection.
For user it seems that your password is wrong or Keychain has lost your password etc...

I changed email retrieve interval, lets see what happens.

UPDATE: so it seems that changing interval from 5 to 15 minutes did the job.