I have the same probem as Corinna, ie a pop-up window declaring an error but I have a MacBook running Leopard which was my first Mac and therefore this infuriating fault must have been built into Leopard. The "Cannot connect to communication device" message pops up randomly and has to be closed before I can continue working. Occasionally I get a PPP connection message which cannot even be closed. I cannot find the application anywhere in system files. I have got used to living with it, but every so often it drives me round the bend, as now! Is there a solution?
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