1) You can adjust the capture qualities under Video>Properties (This is your best bet, especially, if you use Video Essentials to calibrate.
2) You can adjust the colors of the video once you have the video in the editing space. To make sure your colors are "NTSC safe", look at the video plug-in s.
Something else to keep in mind - make sure that your monitor, itself, is calibrated as well, if you want WYSIWYG.
(BTW, I use Vegas 5 myself. I love it, and I'm capturing right now.
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