the electrics on dna's are terrible,my speedo broke not so long ago, if it is staying on 0mph/kph all the time you will need a new speedo cable and sensor unit, you can buy these from ebay for pretty cheap.
If the clocks dont come on at all then you will need to buy a new set, in the mean time you can disconnect them and the bike will run but obviously you wont see how fast you are goin, how much petrol you have etc.
Simon
September 2007