2002 Almera Speedo, Rev and gauges problems

[Chris P]

Hello to all. I have a 2002 1.5se Almera and have a problem with the speedo, rev, and other gauges freezing after start-up but only as I move forward as my latest problem. The problem started with a loose battery terminal a couple of weeks back when driving which made the Speedo get stuck on the wrong side of the resting pin, all the gauges were flying everywhere and then everything would go off completely. I took the instrument binnacle out the fix the speedo and to put the speedo needle back the right way round and while there to replace the bulbs gone behind the mileometer, now have this new problem of the dash freezing after starting up when moving forward. Any ideas ? Thank you in advance. Chris.