Cursor moves randomly around the screen, cannot rotate the screen properly on Dell XT2

I have Dell XT2. The cursor is moving randomly very fast around the screen and it clicks everywhere. I had the same problem on 10.10 but after kernel updates problem had seem to be reduced but not solved. I had then Magick-Rotation installed. So when ever this situation occurred I clicked on the green icon, thus the touch function was turned off, and the problem was vanishing.

Until two days ago there was no problem about the touch screen on 11.04. Now it is impossible to work on the computer when the touch function is enabled. I still have Magick-Rotation installed, I even managed to whitelist its green icon. So when the problem occurs I disable the touch function by clicking on the green icon of magick-rotation. But it hard to reach the green icon because it is hard to capture the cursor. I can only do that with the touch-pen. Should I wait for a new kernel update? Or are there things to be done?

The other thing is, Magick-Rotation doesn't work when the screen is rotated to tablet mode and 1/3 of the screen becomes black. The black part is pretending as off-screen. Nothing can be put there or the cursor doesn't move in that area. I know that this is related with the bug https://bugs.launchpad.net/unity/+bug/776875 . May there me another solution?