Hello,I'm having problems installing OSX Puma on my iMac G3 233 Mhz,PPC with 160MB RAM and a 4GB HD.I have disks for OS 9 and I reinstall it with no problem,but when it come to upgrading just too 10.1 it won't let me and says can't make cd start up disk.Oh,I'm also doing this on a eternal DVD drive my cd drive in the mac is dead.Can someone help??