MPC hc weird side bars

http://i.imgur.com/Go97hCy.jpg

I get these weird bars on the side when watching anime .
When i pauze the video or just skip to a different part it gets to full screen for a split second then the bars just appear again .
How do i fix this .
( im using a 2560x1080 monitor if that matters )
And other small questions doesnt matter that much but is there a way to lower the CPU usage for svp .

:edit:  before using SVP i could get it fullscreen with mpc hc  using View>video frame> stretch to window