notebook encountered some problem, need advice, thx!

Hi All,

I am experiencing some problems with my notebook. It doesn't matter which applications I am in, wherever the cursor is, the right click drop down manu will automatically open. Sometimes, it will automatically select the favorites/add favorites if I am in a browser. Sometimes, the properties will pop up. Basically, it drives me nuts. (sorry, i can't input chinese characters with this laptop). Does anyone ever encountered similiar problems before? Does this mean it has a virus? Is there anyway I can fix this issue? Your help is greatly appreciated.

Thanks again!