Digi-Dash Problems

Alright, i have just fitted my digi-dash and went for a drive to find the speedo is waaaaay out as in saying im doing 20mph when its more like 60mph lol also my rev counter is kinda stopping when i reach about 4-5k but i know for a fact the engine is revving beyond that, also its the clcoks with the curved rev counter.

Any help greatly appreciated, Thanks.

on top of the digi there is a red switch.. switch it the otherway and try it.

Also hold the revs high... does it still show the same.

a red switch? i cnt recall seeing that when i fitted the clocks :S but ok i shall try tomoro and the revs jus stay at 4-5k when the revs are blatently increasing