SUCCESS!! thanks so much to all of you for your savy. after three failed attempts, i finally made my hybrid nav dvd on my iMac G5 after downloading a program called dragon burn (reccomended by a co-worker) and taking advantage of the free trial version. i inserted the burned dvd into the nav, up popped the map with my current location. i tried the override, no luck. so i removed the fuse and reinserted it after a few minutes, i tried the override again, and volla.

btw...it's not fuse #15, it's a 15 amp fuse. thanks again. i couldn't have done it without you!