Copied same folders and content from old laptop and you wouldn't believe it but it worked a treat.
Adobe applications are very complex with support files and plug-ins in many locations. Copying files and folders doesn't work, and may present results like you're getting.
You have to INSTALL the application from the media received when it was purchased, or with a backup install made from a download purchase.
You have large fonts enabled in Windows. Set it back to 100% or turn off Aero.
Steve, I think the app was installed from the media, but the OP used prefs from a previous install. Not a particularly great idea but not necessarily fatal either. I'm going with the large fonts thing until the OP shoots it down.
Firstly apologies for posting a question then leaving it for so long. Illness can never be scheduled in :/
Secondly, Bob, you were 100% correct. Fonts were set to 125% and Aero was enabled. I reduced font size and also disbaled Aero and it immediately fixed the problem.
Now, the question is which one of the 2 was more likely the problem as I foolishly applied both fixes at the same time. The answer would be the font size as Aero was also enabled on the old laptop which was working OK.
Many thanks for the responses, many thanks for your help and tips my hat to Bob - well done.
PS I did originally do a full install onto the new laptop.
It was a combination. You only needed to change one. Take your pick.