I'm running Debian now, but I think this may address your problem (although it may be the "fix" mentioned above is the application of the same patch, I can't tell).
http://pj.freefaculty.org/blog/alps-touchpad-linux-final-statement-now
Brief summary. Install the "psmouse" patch https://patchwork.kernel.org/patch/350841/ following instructions you find here: http://budts.be/weblog/2010/12/dell-latitude-e6510-screen-and-touchpad.
After that, 1) no more random cursor movements while typing 2) tap to click, right side scroll, and doubleclick to grab will work.
I'm running Debian now, but I think this may address your problem (although it may be the "fix" mentioned above is the application of the same patch, I can't tell).
http:// pj.freefaculty. org/blog/ alps-touchpad- linux-final- statement- now
Brief summary. Install the "psmouse" patch https:/ /patchwork. kernel. org/patch/ 350841/ following instructions you find here: http:// budts.be/ weblog/ 2010/12/ dell-latitude- e6510-screen- and-touchpad.
After that, 1) no more random cursor movements while typing 2) tap to click, right side scroll, and doubleclick to grab will work.