If you still have this trouble with the remote control, I recommend you to have a look a these links:
Thank you, but all the above suggestions have been carried out. Having re set the Sling Box to factory default I now have video and audio but no remote. When trying to configure inputs the set up wizard asks for the make of the remote control. Upon entering Sky which is how the remote is branded, it is not recognised. There is no manaufacturerer or model listed so I'm now at a loss. Incidentally the IR blaster cables are positinoned perfectly.