Im not sure if I have a network problem or something else? My htpc has been working great for over a year. I only use it for sd dvd rips over my network with xbmc. One day it just started to freeze on playback I switched out my Verizon fios router for my older Netgear router. It plays better but I still get some stuttering and some lines across the screen and the lower 1/8 of the screen seems blurry.