Backup and Restore Files Not Working on Win7 64-bit

All “Backup your computer” and “Restore files from backup” links in Control Panel are not active; when they are selected they seem begin working but after a second or two, nothing happens. Same thing happens when I open a Help topic on backing up file and select “Click to open Backup and Restore”

I’ve also tried by going to Computer>External Drive>Right Click>Preferences>Tools>Back up now. When this is selected the arrow/hourglass comes on for about 2 seconds and stops.

I had been using “Acronis True Image Home 2011” and have just uninstalled it; want to use the Windows backup system.

What can I do to get it the Windows Backup and Restore operating?

Thanks,

Peter