2300 MP Projector Remote -- Next Page Problems

I'm using the remote that came with our 2300 MP Projector with a PowerPoint presentation.  I made sure to connect the USB cable from the projector to the USB port on the laptop.  I can access the menu and other features on the remote, but when I try to advance to the next page of the PowerPoint presentation, nothing happens.  This happened once before and all I did was shut everything down, disconnect the cables, then reconnect.  But unfortunately it didn't work this time.

 

The OS is Windows XP and I'm using PowerPoint 2003.  The laptop is a Dell Latitude.