Bought a computer at a garage sale that has 10.3.9 on it--with lots of problems. Didn't come with recovery disks. I have OS 9.2 disks and am trying to install that on the machine (I know that's going backwards, but for reasons too long to put here, I need to have a 9.2 machine). Having problems going backward--never wiped a hard drive before. Getting error messages saying 9.2 can't be installed over 10.3.9. Any help would be appreciated!