Vauxhall Corsa possible electrical issues

Hi everyone.

Now this seems to be bit of a tricky one...

Occasionally as I am driving along the clocks on the dashboard will cut out along with the indicators. The speedo, rpm meter, temp gauge and fuel gauge will die but the light remains on. Then, at some point, they suddenly come to life and this can be either straight away or a few seconds later.

However, a few nights ago, the clocks cut out and didn't come back on. So, I parked the car, turned the engine off and then the car refused to start again. I called Green flag who came and had a look and suggested inn might be the fuel pump, but then after getting towed home the car started up fine, no problems at all.

I then took it to garage today where they gave the car a check over and everything was fine. I told them what happened, but they could find no fault and suggested it might be the ECU. But when driving back from work the clocks cut out twice, but both times came back to life quickly.

Does anyone have any suggestions of what cold be wrong? All advice and ideas a very welcome :)