On my new asus laptop I cant use the touchpad to do anything. It seems to have locked. The cursor is on screen but doesnt move.

might be a function key possibly f5 on my toshiba turns off mouse may be a different function key on Asus that does this.
otherwise lock up try ctrl Alt Del keys see if task manager option comes up. if it does one application may be locking up p.c.

Some toshiba laptops have trouble with the touchpad locking up. I have tried using a wireless mouse and it has helped whenever the touchpad locks up. to unlock (I'm assuming you mean log in) you can click space instead of using the mouse.

check the mouse settings in the control panel, these functions may be locked out or their may be a fault in the driver software.

Maybe this will help: http://techtips.salon.com/disable-asus-touchpad-583.html

Make sure there is not a lock on the top middle of the touchpad that you can press to toggle the lock/unlock. if so, press it. Otherwise I would try booting up in safe mode and see if the cursor locks.

Try going to your devices manager and uninstall the pointing device,then restart your laptop and windows will reload the drivers...that should fix it:)

There should be settings in the touch pad software on your machine or in the task bar that you can directly access to change all manner of personal idiosyncrasies related to HID. (Human interface device) Try also going into the control panel and looking for input devices, mouse, touchpad and adjusting the settings from within there.

My eee netbook will do that too. it seems that parts of my thumbs or palms tend to hit the touchpad at times clicking the cursor on different parts of the page? could this be happening to you? try disabling the touchpad with the little silver button on the left hand side of the keyboard at the top. If this does not help, you may need to replace the keyboard. It can be ordered from the asus online store.

Hope this helps you!

Please try re installing your operating system. (Genuine windows xp or vista recommended)

If the problem still persists feel free to get back me @
deepuunni1985gmail.com

Plug in a USB mouse, and go to Contol Panel>system>device manager and click on the +sign next to pointing devices. Right click touchpad and uninstall the touchpad, then reboot the computer, remove the usb mouse. Windows will pick up the touchpad as new hardware and re-install the drivers for it etc..

I hope this helps