assorted pieces of random gobbledygook

Dear Lazyweb,

in order to set up full-disk encryption, I want to boot my trusty ol’ Powerbook off a USB stick. This is a PB G4 FW800, 1.25GHz with a Powerbook5,2 4.7.1f1BootROM. This is the latest Open Firmware release for this model, according to The List. If I choose to believe a macosxhints article I found, someone managed to do it for a 12″ Powerbook with 1.3GHz (what’s that anyway? a rounding error?). Alas, it doesn’t work for me. No ud device to be seen in Open Firmware. Any ideas, or am I simply out of luck?

I’ve been having major Mail.app problems on my Powerbook the last couple of days. I’m running Mail.app version 2.1 (752/752.2) on MacOS X 10.4.8. Having my primary work IMAP account enabled resulted in 100% CPU usage, eventually forcing me to kill Mail.app. Disabling the account allowed me to use Mail.app normally. Nothing seemed to be able to cure this problem, not even deleting the account and setting up a new one with the same parameters.

Solution: I had to delete ~/Library/Mail/Envelope Index and ~Library/Mail/Envelope Index.journal. These are the SQLite3 databases that Mail.app uses for storing message properties such as header information.