After having performed a hot unplugging of a FireWire soundcard (MOTU Traveler) I have this problem: althought both the computer and the soundcard have been switched off then switched on again later, selecting this soundcard again and trying to switch audio on in Max crashes the software.

I have trashed the "com.cycling74.MaxMSP.plist" file in preferences folder but it doesn't solve the problem. Should I trash any other one? Please note the soundcard is working properly with other programs.