I flew into and out of Miami less than two weeks ago, and I didn't have any problems with Reg and computers (2) in my carry-on bag. The x-ray guy was dwelling on one of my bags for a few seconds, so I said "Scuba dive gear" and he rolled everything on through after a few more seconds. I don't know if I influenced him positively or negatively or even at all.
Lines were not bad, but it was January 1, so YMMV.
I had a small problem at San Jose airport in October, but that seemed to be the one and only bag checker that didn't recognize a Reg. The Supervisor was called, and cleared it immediately.
My two cents, but only because you asked.
Wristshot