I installed a new video card recently, an Nvidia 5900XT, upgrading from an Nvidia TI4200, and now Vegas 5.0a cannot preview JPGs. When I click one in the Explorer (using autopreview, although I have tried it manually, as well), the preview window flashes briefly and the attributes below the preview window change for a second, but the screen stays black. The weird thing is, when I place a JPEG on the timeline, it previews fine.
Anyone seen this or have any suggestions?