Plextools audio cd Player

Anybody have any idea why in Plextools I have problems getting the audio CD player part of the program to recognise that a cd is in the drive, the strange thing is that it is only the player part of the program that has this problem , if I click to a different feature of the software such as CD Copy or Audio extraction there is no problem all the info from the cd is there, if I then change back to the Player part and use refresh F5 it continually comes up as nothing in the drive even without removing the disc after the other applications have read it. I am using the latest Plextools and firmware.