I have the same laptop model (Inspiron 1545), which I bought from Dell with Ubuntu 9.10 pre-installed. Everything worked until the touchpad broke in late November 2010. However, my symptoms are slightly different: I can't use the right touchpad button but can move the cursor. Tapping is extremely sensitive and can't be disabled. See my bug report:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/705243 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. https://bugs.launchpad.net/bugs/638025 Title: Cannot disable 'tap to touch' on touchpad Dell Inspiron 1545 _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

