Hi Digerati,
Thank you for your reply.
It doesn't ask me to press a key, I found by chance that when boot up stopped at the PC manufacturer's logo, if I pressed a key, boot up continued. I bought the Belkin wireless Desktop 280 as a gift for my son several years ago but, as he now just uses a laptop he asked me if I could use it. No software is available and the drivers were installed by Windows and are said to be the latest available.
The "Dongle is connected to the USB slot which is right next to a PS2 socket so I guess it is the right port to use. Although I doubt it, maybe pressing a key wakes up the keyboard and is a battery saving idea?
As I think I have mentioned, I have tried different USB ports all with the same result. Fortunately it is no big deal to press a key to complete booting. It is not ideal but I am sure the reason I have to do so will turn up and provide a solution.
Regards,
Jim