[Xastir] MacOS/Xastir problem

[Jacob Tennant]

Whenever I try to activate a serial tnc connection it causes my Xastir 
instance to freeze for about 30 seconds then the serial port never opens?

I have checked that all of the configuration is correct  duch as 
/dev/tty.usbserialFTDI845 for the serial port and I have use a terminal 
program to talk to the tnc and everything runs fine there.

Any suggestions?

Jacob Tennant - WF8S