yesterday i was gonna draw a art trade picture for my friend. my tablet was doing all fine but suddenly in the middle of drawing the cursor began jumping side to side, up or down with few small slides. i uninstalled and reinstalled the wacom tablet driver and updated gimp too today after work. it still keeps on doing it, but when i tested it more, i saw the light on the tablet time to time shining brighter from the pen and then on some areas it went dim and not bright like normally. could it be my tablet has something broken or something else?