I had similar issue. This is what I was told to do. I can't remember which step fixed or if I did all to fix.
1. Running the Release Switcher
2. Modify this line in the powerpcb.ini [cid:image002.jpg@01D3B167.193D1E20]
3. Review video card settings, potentially adding PADS to 'Multi-Sample Anti-Aliasing' (Intel terminology). Even though the pc has AMD card, onboard chipset still might have Intel. Giving two video settings options. [cid:image006.jpg@01D3B167.193D1E20]
4. Re-install, disabling security ware, make sure no other programs