I made a model with DAZ Studio 4 and exported it in collada format (dae).
Then I created a simple scene with Blender 2.63 official on Windows 7 64bit, imported the collada model and looked on it in texture mode (with GLSL switched on). If I go to edit mode then, the face texture is totally messed up. Also if I select materials and want to activate the assigned vertices (press select button) no or the wrong vertices are selected.
If I create the same scene with Blender 2.62 everything works as expected. No edit mode texture mess!
I put two blend files (one with a working scene created with blender 2.62 and one with a not working scene and the edit mode texture bug created with blender 2.63) and the collada file on dropbox: