One or more of the following errors appears in your Creative Suite 5 or CS5.5 log files:
- Failed to open Master PCD.
- AMT: Error: Cache PCD is not writable, hence exiting. (Error = 16)
Launching multiple Creative Suite 5 or CS5.5 products in quick succession can cause these errors. Try launching the products with a few-seconds delay between each launch. If that doesn't work, verify the permissions on the PCD folder using the instructions below.