I'm running 2.0.33 on a Mac 475, and I can't get the serial ports to respond. I've run PPPconfig & Magicfilter. Setserial implies ttyS0 & S1 are "there", but any attempt to send something to either port fails. Minicom fails to dial the modem, and after LPR'ing a file, LPQ says the printer is inactive. I have tried echoing Text directly to the devices, but this also results in no response. Are there modules or daemons I have to load/run before accessing the serial ports? Thanks.