First thing I'd ask you is it a standard manual shift or is it a automatic transmission? More than likely you have a automatic. I would suggest that you should check the transmission fluid. It sounds as if it's low of fluid and slipping. If you don't know how to check it I suggest you find some one very soon that does as this can cause much bigger, more expensive to repair problems.
There should be a reset process to solve this problem. Sounds like it's gone into diagnostic mode. You can Google your exact brand, Mosley, and problem and there should be a repair video. Be sure to Google THE EXACT info!
You'll need to unplug the tower from the power source, remove the outer cover. Look on the.mother board for the memory sticks. Once you see them WITHOUT sticking your hand inside yet see if theirs any open slots. Then once you decided that you can add more memory sticks you MUST ground yourself to the frame of the computer while simply plugging you new sticks into their respective slots and then close the tower back up. If there are no extra slots and you want to replace the memory styx you have with large capacity styx the process is a bit different!
Sounds like the component your referring to is the digitizer. To clean the screen side you'll need to remove back cover, all inner components including the actual screen, clean the digitizer and then reassemble!