Glen Myers writes about a familiar problem: Inability to use a internal modem on a PowerBook because you get a message that says the serial port is busy. Avariety of possible solutions exist. In this case, Glen was using a PowerPort Platinum Pro PC Card and OT/PPP. Global Village tech support told him to switch to FreePPP. It solved the problem!
Note: When we covered this issue in February, another solution was suggested: Add a space in front of the file name "OpenTpt AppleTalk Library."