HPL Level Editor AMD Graphics Driver Crash

[Your Computer]

Does it only crash when you have lighting in the scene? I found that it works fine up until I add soem form of lighting, like a point light.

I don't remember all the times it has happened to me, but it did happen when i was using Blender too (although this could have been triggered by the fact that i had previously opened one of the HPL editors, though i had closed it before using Blender). If you want to verify your theory, try disabling lights in the level editor options.