AutoCAD LT :: 2010 Object Selection Broken?

I cannot get the advanced select objects tools to work. 

I type:

select <enter>

wp <enter>

Make my polygon, and then I'm stuck in a single item select mode. If I hit enter, they all unselect and I can't do anything. Typing a command (like "m") does nothing.

Typing m <enter>, and then doing the selection yields the same result. At the end of my selection process and I hit <enter>, it sits in the single object selection mode (the little box cursor). Hitting <enter> here again makes the selection dissapear and I'm back to square one.