Unable to start N360 or see system tray icon / 64 bit PC

Had 10 days remaining on last N360 licence, and could not find an option to add Product Key as I purchased a Gold Edition with a new laptop.  Was going to use a 2nd PC licence on this machine, but after deciding to run the CD hoping that would find the existing installation, uninstall and put the new one in, it failed to install the new one and now old one won't start back up.  Not sure if protected or not now.

 

Although I had issues getting N360 starting on this 64 bit machine a year or so ago, it's a pretty stable machine.

 

When I double click the N360 desktop icon, nothing happens.

 

Any ideas?

 

Thanks

Neil