I realize this does not really apply to this post, but had a long day on a TAC32. The hall calls quit working, and had wired faults pop up. Door locks, hate switch, spun my wheels going through door op, interlocks, etc. ended up in the start up wizard on the UIT, relearned the CAN nodes, verified them....no luck....did it again, and went to the end of the menu....make sure that you write to flash!! Then they worked fine. I had a low RAM memory battery fault, replaced the battery, crossing my fingers. Unit is about 2 years old, this is the first problem. Could the low battery have caused this? I got lucky and TK left all manuals, memory stick, etc. with the unit. Talked to a TK guy that I used to work with, he says that the TAC32 has major software issues on the newer units......any thoughts