Issues with screen after replacing

Hello,

I'm experiencing some issues after replacing my screen. I'm getting a lot of ghost touches when scrolling, and every few days the screen goes crazy with clicks. Completely unusable. Can't do anything but hard reboot which fixes it. The Keyboard is a bit off. Most gestures work, but only if you use a different one each time. Example: You can't use 'V' twice in a row. You have to do a different gesture each time or it won't respond. Music gestures don't work at all.

Everything else works as it should.

Any idea what could be causing it?