in the case of the screen what I mean is that the screen looks like a film of a tv. Ie, when you film a tv or crt, you can see some lines going past. Well i can see very faded likes moving from the top to the botton in the same way. It's something you don't notice if you just look at the machine without closer insepection. I opened the thing up and it's really clean, no capacitors leaking.

Is there anything taht could be wrong? or could this be just normal.