I got my laptop back today, it had to have a new battery, I am not pleased with the result.
When I switched it on the cursor kept jumping around and a cant get it to do what I want it to do. I left it on for a bit and the cursor just kept jumping around and so did the pages keep switching to and fro. sometimes the cursor flickers large then goes back to normal. I phoned the repair chaps up and I shall take it in tomorrow again for them to look at. They said it was ok when I came to pick it up, but they didn't switch it on in the shop for me to look at. So when I got home, I found it in the state I have mentioned. I hope they don't blame me for doing something to it.

What causes the computer cursor to jump around?