Here's the low-down on the 990's video switching:

• Composite video Inputs: Available at the composite, s-video, and component video outputs. Also, will have setup menu and "pop-up" data overlaid onto video input.
• S-video Inputs: Available at the composite, s-video, and component video outputs. Also, will have setup menu and "pop-up" data overlaid onto video input.
• Component video Inputs: Available at component video output. Setup menu will be available, but will be on black background (replacing input).
• DVI video inputs: Available at DVI video output. No menu data available.

Having said all that, we need to know what sources you have to know what connection to recommend to you. Also, it'd be useful to know if the DVI input has HDCP support.