I just purchase a new Alienware computer and Sony Vegas Pro 18. Vegas was the first thing I downloaded on the computer, and everything was working good for about 5 minutes. Then the menu started getting glitchy/buggy. Under the transitions tab in the preview window, one transitions title was blown up very large and was the only thing visible in the window, when I moved my mouse over the title, the other transition titles started to appear as I moved my mouse over them. I have included some pictures (they are not the best quality) but hopefully someone can see what I'm talking about. Its not only in the transition window. Buttons will disappear unless I hover over them with the mouse, and the "Render" button was only a sliver of a button.