Similar thing happened to me last year to my speedo,rev counter,petrol gauge and temparature gauge..in fact,the feckin lot.was on my way to blumeeni's when it happened..lucky for me pete's a mechanic so he checked the fuses etc etc,and found the fault to be a bad connection between a wire and the connector block at the back of the clocks.basically,he bi-passed it and all was good again :yo: so it may be a similar problem :dunno: by the way,mine's a 1999 FI....if that makes a difference.
stan :beer: