I then had a problem where I decided to do a complete New Clean Install of Windows 7.
Several hours later.....( No, Many hours later .......)
I re-installed PD11 only to find that I can no longer Activate the AVCHD codec function.
I get the 30day message that says I have no internet connection OR my Serial number is incorrect.
PD10 re-installed OK and was immediately fully functional.
Ticket submitted to Cyberlink.
Something to be aware of.
PatC