I was playing around with the video settings in XBMC, just pal stuff, then I turned off my xbox. I turned it back on and the screen i see is black and white and is jumping from top to bottom. everything seems to be working fine, but the screen just jumps around and i can't see anything clearly and its in black and white. I deleted xbmc, and it still happens. I turned off my modchip with the switch, and it still happens. All my connections to the tv are perfect, whats the problem???