Bridge CS6 Cache problem

Have installed Photoshop CS6 and in using Bridge I get the message "Bridge encountered a problem and is unable to read the cache. Please try purging the central cache in Cache Preferences to correct the situation". If purge the central cache as instructed, on the start up of Bridge I get the same message and are unable to use Bridge.

I am on a Mac using OSX 10.7.4

Your help will be appreciated