You might try the "Configure Pad Borders" in ksynaptics. This solved a lot of ptoblems for me. It is not entirely evident from the text in the dialog that this afffects the cursor movement ...
-- problems with synaptics driver on laptop Dell Latitude D610 https://launchpad.net/bugs/75505 -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
