Sticky or Short-cut keys: defined or.. how to undo?

Looking for knowledge of the way 'sticky keys' or short-cut keys have been prgorammed (beyond those in the Duh-ell documentation). 

Background:          Sensitive touch-pad combines with other keys -- not sure what / which -- to create unplanned dialog boxes, highlighted text, new browser, etc. -- and I want to either undo what is programmed or see the list.

Hardware:            This is a brand new Latitude laptop that was company-issued, and our company tech support has not programmed anything and they can't tell me where to see settings or how to reprogram.

Can this community please help?

(It's totally maddening; why bother having these and not explaining them somewhere... it's like a ghost in the machine.......)

Thanks in advance!