A quick look through the dmesg(8) database at NYCBUG tells me that Toshiba laptops come with multiple brands of touchpads: Synaptics and ALPS being the two I found in a short search.
To my understanding, the ALPS touchpad is connected to the kernel through the pms(4) driver, and the X.Org synaptics(4) driver can be configured with them.
Here's a comment on the ALPS touchpad configuration via Synaptics settings:
http://openbsd-archive.7691.n7.nabbl...-td163308.html
If this link doesn't help you, please post your dmesg() and the contents of
/var/log/Xorg.0.log, so that we can see what hardware the kernel attaches, and how X configures it.