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Sonar 2 is no longer supported - I suggest all users uninstall this version and install Sonar 3 instead.

Sonar version 1 users:
If you're still using version 1, note that version 2 will install to a new folder. It includes a data converter which will read your existing Sonar data and write it to the new program's format. This is non-destructive, you can run the converter as often as you like and it won't change your Sonar 1 data!