BELIEVE ME PLEASE. I've seen questions in forums like "How much does a software weigh?" and i hope this question will not be mocked like that :(
But when I plug in my external hard disk 1TB Sandisk, external power in my laptop Ubuntu 12.04 LTS desktop... 64-BIT... Dell latitude E6520 my touch-pad becomes pretty inactive. When I remove it, it acts normal.
Driver problems? Please guide.. let me know if u need any logs/specifications more...