Time before display dims (Tdim)

[Joe Horn]

That's strange. My Primes act the way they're supposed to act (they use the TDim setting even after turning off and back on).

By the way, it's TDim, not Tdim. And a setting of 120000 is 2 minutes, not 3. But I don't think that's what's causing your trouble. So strange! Have you tried clearing all memory, in case the problem is being caused by corrupted memory somehow? What is your TOff setting? What hardware and firmware versions are in your Prime?

Last, desperate guess: try setting it in CAS using an ordinary decimal number... just in case its binary representation is causing confusion in Home.