Debian :: Touchpad Enable / Disable Key Not Working

Since last Saturday (11-20) my touchpad enable/disable key stopped working.I don't make much use of the touchpad and it usually stays disabled most of the time so I can't be sure it is really on Saturday that I lost this functionality or maybe the day before (I'm positive it's not longer than that).Before that it worked flawlessly, now it's like a dead key (which is not broken by the way, tested on a live CD).In these past week I have been looking for quite some time for other users who might have experienced this problem after the update of two specific packages (console-data and keyboard-configuration) I had on the 20th and which made me think might have broken the key binding.Not finding anything at all and after having tried for said packages both newer versions from sid and previous known-to-have-worked-before versions from the install CD, I started thinking the problem was not there (I consequently restored the testing ones).

The days before this happened I tinkered a little bit with gpointing-device-settings and tpconfig (this last one was a simple tpconfig -i), but at this point I start thinking there might have been something else I've done, somewhere else I can't recall probably.

Oh, I forgot to mention that the touchpad still works flawlessly, I can enable/disable it through gconf (actually I made two handy shortcut to the "/desktop/gnome/peripherals/touchpad/touchpad_enabled" value), so it is not an issue of making it work, just the toggle key which on my laptop is a dedicated one (no Fn modifier) and anyway all the other special keys still work fine.I checked gnome-keybinding-properties and there is no action for the touchpad there, but I don't know for sure if there was one before (and I haven't been able to add one). Anyway in gconf I noticed a key in "/apps/gnome_settings_daemon/keybindings/touchpad" has the value "XF86TouchpadToggle", not sure if that means the keybinding exists or what.

What more can I add? What I'm here to ask now is some guidance on figuring out what I might have done wrong considering what I was able to tell you, but mostly, considering what I wasn't able to tell you and am not even aware to have done.