Turn your laptop into a second monitor.

[AlbertPacino]

MaxiVista is a dual monitor software and can turn your spare Laptop or Tablet PC into an extra monitor for your primary PC.
Toolbars and program windows can be moved and extended across both screens as as if it were one big monitor. No more switching back and forth between overlapping windows - Your productivity will be increased instantly

maxivista.com

The only bad deal about it,it’s not for free