I've installed MediaLink on my MBP, 2.8Ghz. The first day I was able to stream a 1080P m2ts file fine to my PS3. The next day nothing seems to work without stuttering every 2-3 seconds. When I install the files to the PS3, they don't stutter. I tried MP4, and a divx avi file and a DVD, they all stutter. The thing is, is that I have Tversity installed on another computer and that stutters as well. So I'm thinking it's a network problem, but I can't figure out what it could possibly be. I have Verizon fios with their Westell 9100em router. Would anyone have any idea to fix this??? I tried giving a static IP address to the PS3 and my Mac, but that didn't help.