Yes indeed, as alanrichey42 stated, it's most likely an issue with your cables.
Take a look at this page, When I watch using Watch on SlingPlayer.com or SlingPlayer, the colors are all wrong... for more details.
Let me know if checking/changing the cables helps.
Thank you for the response.......as I am currently out of the country, I had someone go check the cables for me. They said they were hooked up correctly. I have been watching it for quite awhile with no problems, this just started. I am heading back to the States soon and will check for myself.......maybe a cable is bad? Again, thank you.