Hi, Im new to vegas pro 15, and as always Im having problems that I still don´t know how to solve due to my knowledge, anyways the problems is that the preview screen moved meanwhile I was editing a text and effects, I have tried moving the video from pan/crop and it just moves behind the black space, Im thinking the preview window might have moved? I also tried moving the video resolution, at the end I don´t know how to fix it, all I know is that it was working right until I started adding and configurating text and fx, I tried deleting them and did not work, I leave you with a screenshot here:

as you can see there are some black lines on the left and on the top.

any suggestions???