My cursor is suddenly acting very erratic. Jumping all over the place. I installed the new driver and that didn't work. Pressing on the right side of the pad seems to clear it up for a short while. Does this mean it is a hardware problem? If so can it be fixed without sending the computer back? I have 10 days before a 4 week long business trip and I NEED a reliable computer and I am not sure I can trust this one. Any ideas?