Thank you for your prompt reply.
I bought Premiere Elements 11 along with Photoshop Elements 11 as a package
deal from PC World.
I have two computers both running on Windows 7 64bit, one is a laptop the
other is a standard desktop computer .
I cannot get Premiere Elements to load into either of these.
At one time or another I have had it installed in one or the other but not
at the same time.
I run CCleaner regularly.
The programme is being installed from an official disc.
I go through the complete installation including installing the serial
number, I even get an icon on my desktop.
However when I click on the icon the programme goes through the normal
loading routine, including the loading screen, but then does not go any
further. the usual operatoing screen does not appear.