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What is jumping ???? the screen the mouse can you explain a bit more please ? If you problem is the screen its possible it could be a bad video card on the motherboard or the lcd itself . if you have a extra monitor from a pc could you plug it in to the back on the laptop and see if it works ok like that . if yes then i would say you may have a bad lcd if it does the same thing then you may have a motherboard issue . something else to think about is does it have the problem before windows starts after it starts or both . if only after windows is starting it could be due to software / driver issues..
By that description sounds it sounds like you need a new monitor. Otherwise I would say if it was just a black screen to reset your CMOS by removing the side panel of your computer, locate the round battery and near the battery is a 3 pin 1 jumper setup most likely jumper on 1,2 but can be 2,3. Which ever the case, unplug the power cord, remove the jump from 1,2 and move it to 2,3 or vice versa remove from 2,3 and move to 2,1 for 1 minute then remove and replace in default position. Plug the power back and and start it up. As I said, wouldn't go through the trouble because your monitor sounds broken.
If you mean to say that the computer-generated displayed image on your screen changes, it's a function of the computer, not the monitor. If you mean to say that some monitor-generated displayed image is appearing (such as a setup/configuration menu or a splash screen), please tell us more so we can diagnose further.
Okay, best thing to try to do if possible. Try another known good working monitor on the DVI ports. If the screen still jumps then you know the video card is faulty. IF the known good monitor works on the video card then you know the original monitor is bad.