"system error type 102"?

Hello! You have an OS9 extension conflict and the only way to fix it is to use the extensions manager (space bar down at startup) to isolate the problem extension. You can start with the base set and add them one at a time until you isolate the offending one. Sometimes watching the icons loading at startup until the freeze will give you an idea of how far along the process is when the problem extension loads and causes the problem. As a side note "ain't OSX great!!! no more system crashes because of extension conflicts! tom

Despite Tom's otherwise excellent advice, I find holding down the spacebar at startup often makes my Mac unstable. Often, it will not proceed to boot after extensions are re-arranged.

I prefer to boot up (using the shift key the first time to get extensions off) then use Extensions Manager in the running system (not at boot-up) to add a few extensions at a time and re-boot. Using a different name for each incremental set allows you to return to a previously-working set after a bad choice, and continue the investigation.