[chirp_users] BF-888 Mac problems

Use a Mac to program BF-888 and UV-82 radios. All works well in downloading and uploading programming to radios, however after programming the BF-888 and I shutdown CHIRP my Mac becomes unresponsive to keyboard input. Computer will not shutdown or restart. I have to do a hard shutdown on the computer to reset everything. When I program the UV-82 the computer behaves itself when I close CHIRP and I encounter no problems.