vegas pro 15

Whenever I import any video into one of the programs listed in the title (Vegas Pro 15, Adobe Premiere Pro) the preview window looks like it has a negative filter overtop of it? I've updated my GPU drivers on my laptop and I've went through Vegas' and Premiere's settings about 100 times trying...

So I recently got my hands on Vegas Pro 15.0 because I was curios to see the new NV Encode render mode, and to my surprise, I now render x6 times faster than I do with 14.0. Which is great, worth the investment for what I do, but I have also been struggling with choppy/laggy playback in the...