Can someone tell me how to rectify this problem or how to purge the cache. Many thanks
"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 you start Bridge while holding down the Ctrl key, you get a dialogue box with three empty tick boxes. Tick the one marked "Purge Entire Thumbnail Cache" and click OK.
It may take a very long time to rebuild your cache, depending on how many images you have. This can be less painful if you set Bridge to browse with embedded images, or produce HQ thumbnails on demand (toolbar, top right).