I have just tried to start my Viper 1999 RT/10. When I depress the clutch as normal for starting and turn the key it seems completely dead, yet the battery is fully charged and all other electrical systems still work as normal. I had only just started the car half an hour before with no problem prior to this happening. Can anyone give me some advice of what I need to do to fix the problem please ?

Thank you,
Leigh.