Enabling Cursor

I have an Dell Inspiron N5010. My wireless mouse and touch pad bar lock up on me. I cannot move my cursor/pointer only when I sign into my computer. Otherwise it's no hope. I tried everything I could possible do. Even the key to the right of F12 key. No luck. I can only tab or move the arrows L, R, U, D. That it. It will not allow me to change my setting in the mouse to enable it. Can someone help.
 
Have you tried a USB Wired mouse to test if that works? If you do not own one, maybe you could borrow one for a short time to test your system.
 
I have a usb wired mouse, that also is disable at the time. I need to find a short cut to tab and find other functional keys to work to enable the mouse to work. Any more suggestions. Thanks
 
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