Touchpad on Laptop Broken?

[Xartha]

So, I got a old laptop from around my house, fixed it up, (deleting old files, getting rid of cookies, etc.) and whenever I plug my charger in to charge it while using it, the mouse goes haywire on me. I don't know what the problem with it is, or what.

Also, it won't charge while I'm using it. Please help, and thanks in advance.

 

[SchizTech]

Based on your statement that the mouse only goes crazy when the unit is plugged in, and the fact that it doesn't charge, it's a problem with the power. Buy a new charger.