I have G4 Yikes 400mhz PCI video with aftermaket internal DVD. Downloaded 9.2.1 update from apple site and I tried to install update from 9.1 to 9.2.1 to install OS Tiger but computer froze everytime, I got and error:127, so I just loaded OS Tiger anyway; it worked everything was great until I tried to run a classic program, classic startup froze everytime. Any help would be appreciated.