I'm hooking up my 15" macbook pro to my Element 42" plasma tv. I have a HDMI cable and a converter from my computer, but it requires me to restart every time, and then it just keeps doing that in an endless cycle. I have three HDMI ports on my TV, so maybe I'll try the other two and see what happens. I've seen others on here that just plug it in, but mine doesn't want to work that way. Any suggestions? Thanks!