VGA external monitor shows yellow and green colour

I just took apart my T410s to change the screen hinges. I thought all had gone well but when I plug in an external monitor the colours don't display properly. The display is yellow and if you wiggle the cable it goes green. Could this have been something I did? It worked fine before.
Any ideas how to fix it?
Thanks
Andy

Hi, arp1981
I have a question for clarification: Does this only occur on an external monitor, not the laptop's display itself? If so, then I would retrace your steps of replacing the hinges and make sure that all wires and devices are where they should be. Also, check the pins on the VGA cord and the VGA port itself and make sure nothing is bent.
Best,
Adam
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VGA external monitor shows yellow and green colour

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