Try the Asus page on your machine and see if they have the Elan software for download then uninstall the old and install their newest.
I have a year old Asus with an Elantech smart touchpad run on windows vista (like the last update before windows 7). Sorry I don't have specifics, but I'm not great with keyboard input and couldn't get this info in my current situation!
I used my computer last night, no problems. I got home today and this is my problem:
My mouse seems to work. I have a pointer and I can move it via the touchpad. It wakes up the screensaver if I touch it. If I hover over something on the desktop or a window I've opened via keystrokes, it highlights as though it's clickable. The elantech icon on the menu bar shows that it's receiving input.
If I try to click something, however, either via the buttons below the touchpad or by double clicking the touchpad, nothing happens.
My computer updated its software a few days ago. I ran ccleaner and defragged about a week ago. I regularly run malwarebytes in addition to avg free scans. Using another computer for how to navigate windows without a mouse, I keyboarded my way through to the control panel and, from there, checked mouse settings. I rolled back driver updates and restarted. No joy. I reupdated the driver, restarted and still no joy. I shutdown, took out the battery and let it sit completely juice-less. You guessed it: no joy.
I'm not great with computers. I know enough to look at and do the things I did above, but maybe there are things I haven't thought of? Since the computer is acting normally in every other way, I'm inclined to believe that it's a mechanical issue with the buttons rather than SNAFU because of an electrical surge (we've had rain/thunderstorms all day).
Does anyone have any ideas or has anyone had a similar experience? I'm flummoxed. I don't have an external mouse, but one is coming to me on Sunday. My gut is that it will work, but I obviously can't say for sure right now.
I'd be happy for any ideas/input anyone has!