I often have this problem and could not find a solution on the Web or from VMUG.
To cure it, I had to Repair Disk Permissions and/or Restart.
http://www.jgoode.com/easy-fix-for-mac- ... isplaying/
Tony Markle
Parksville
To cure it, I had to Repair Disk Permissions and/or Restart.
http://www.jgoode.com/easy-fix-for-mac- ... isplaying/
Tony Markle
Parksville