PB G4 12" OSX 10.4.11 - modem does not recognize dial tone. Connections OK.. Recently, the modem recongized dial tone and connected to internet, but, no sound of the dialing. Last time used modem, connected via DSL to internet OK, and AirPort OK..Today, internal Modem does not recognize 'dial up' dial tone, error message: check connections. Is it possible for the DLS connection to corrupt the dial up process?.. also, the SuperDrive has not worked in a month (cd will not go in).. could this have caused this issue?