Playing messages in GUI does not work on my PC

Any suggestions for playing the messages?

Download and install quicktime player

Sound comes out but the application is a bit of a mess. It could uses some rework. Selecting prerecorded messages is laborious. Neither the text of the message or the recording is easily reviewed. The window which pops up when a message is played is to0 small to contain the message button and it must be expanded to click and play on my Windows 7 system. Etc.
Thanks anyway.