I cannot run a viewer. I tried to reinstall but nothing happens when i try to run it. Please help! Nothnig happens no matter if i try to run it by shortcut or a direct .exe. EDIT: Nothing - not even error. Click - circle by the cursor appears, and the disappears after moment. I have windows 7, my computer specifications is better than recommended. Yes, I have downloaded the big setup, not just starter one - nothing.