Proctortrack is incompatible with Mac OSX version that are 10.6 or older. Test takers can however upgrade to latest Mac OSX.
If the computer unit is less than five years old, the upgrade is free. If it is older than five years,
Apple charges a fee somewhere in the neighborhood of $20 for the upgrade. Regardless of the use of these computers for Proctortrack, the owners should upgrade because, if they don’t, their security risks are very high.
Here are two articles with information on Mac OSX describing the importance of an upgrade.