We inherited an old imac 500mhz m5521 with os 9.1 that we want to use only for internet access. Problem is, we can't get the thing to connect by tcp/ip. the option is unavailable and airport and extensions don't work. I put 256Mb into it and gave it lots of temp mem. It sems like some of the files are missing or corrupted. So - I figured I'd try to upgrade to os 9.2.1. Since I can't connect by internet, I downloaded the os 9.2.1 bin file on my pc and burned it to a cd, restarted the imac with the cd in it holding down the c key but nothing ever happened to start the install, only the 9.1 reloaded. WHat am I doing wrong? What can I do?