I am using a logitech wireless mouse. However, have tried the mouse that came with the computer. Same result.
I can move the mouse pointer to a place on the screen but it immediately starts jumping to the lower right in a series of jumps and finally exiting the screen on the lower right. Also, if I hold down the left button and move the mouse it starts drawing a line on the screen. As soon as i release left button it goes off screen to lower right.
Another comment is: If I restart the machine sometimes the mouse works correctly. However, if I leave the computer on, without shutting it down, it will continue to work correctly for several days and then starts all over again.