EFI Firmware Update Now Available

Intel-based iMac, MacBook, Mac mini, MacBook Pro and Mac Pro users should run Software Update to get the latest EFI firmware upgrade. This fixes issues with Boot Camp, start up and wake-up-from-sleep issues.

BTW - the previous MacBook Firmware upgrade and/or 10.4.8 really cools the machine down. It was extremely warm (that's just below "hot" on the thermometer) before, but now it's just "warm".