I'm using a MS Ergonomic Natural Keyboard 4000 with my Mac Pro (10.6.1); I can't select alternate sequences during the startup (Option to choose the startup device, or Cmd-Shift-Option-Delete to automatically select a FW external drive).
One place told me that third-party devices weren't recognized early enough in the startup sequence to change the startup drive, this is sort of what MS also told me, they said I needed to make sure the USB keyboard option (or something similarly named) was activated in the BIOS (do Macs even have BIOS?)
Anyway if someone knows of a workaround (other than changing the startup drive in the System Preferences) that would be great.
One place told me that third-party devices weren't recognized early enough in the startup sequence to change the startup drive, this is sort of what MS also told me, they said I needed to make sure the USB keyboard option (or something similarly named) was activated in the BIOS (do Macs even have BIOS?)
Anyway if someone knows of a workaround (other than changing the startup drive in the System Preferences) that would be great.