needles

Hi, I need to know the correct method for re-fitting the needles for my gauges (speedo,revs,temp and petrol). Having removed them and refitted them to '0' they seem to go through some calibration procedure when the power is put back on to the speedo unit and end up in the wrong place. I have...

this morning my speedo and rev counter needles started to flash and then went off completely, has anyone had this before?? any ideas on what it could be?? 2001 cupra 80000 miles cheers rich