Walk/Fly Pop-Up When Panning or 3DOrbit

[Anonymous]

After using Autocad 2015 for a few weeks with no issues, I started to get the pop-up below asking to change to perspective view for walk and fly. It pops-up whenever I try to pan or use 3DOrbit. I've searched around online and have yet to find a solution that works for the problem. I have never used the Walk or Fly commands in Autocad so I don't know what could have changed. The issue started to happen after I imported a Solidworks (.x_t) model into Autocad. I've done this before several times without any issues. 

[jmedinaEEF3T]

This right here worked perfectly for me! quick easy and simple.