I am having a bit of trouble trying to get my installation of Mac OS 9.2.1 to boot from my thumb drive. I have a PowerMac G4/500Mhz and the only OS on my HDD is Ubuntu 7.04. Is there a simple key combination I could use at startup to get it to boot from the thumb drive? thanks. I posted this here because I want to run my new copy of Microshaft Winblows 98.