All of a sudden, I am unable to turn off the Touchpad on this Dell M5030 laptop. I use an external USB wireless mouse and when I'm typing the touchpad gets in the way, and moves the cursor all over the screen.
The touchpad is manufactured by Alps, and I have installed the latest version of driver - V8.1200.10.217.
In the driver Touchpad settings you are able to turn off the touchpad (by an on-screen switch in the 'Dell Touchpad' settings dialogue in Control Panel) but it doesn't work - the touchpad is still live. At the top of the window, there are pictures of the touchpad and the wireless mouse. If I click on the wireless mouse, the following screen has an option which states 'Disable Touchpad and Pointing Stick when USB mouse is present'. Even with this box ticked, the touchpad refuses to turn off.
I have trawled the Dell website for hours with no help forthcoming (good old Dell).
I am appealing for help in solving this problem.