When i installed Joost, my computer met all requirements except 1, it requiring me to have 48mb of video memory when i only have 32mb, so the problem is when i try to watch a tv episode, it would lag very bad, and then give me an error saying its unable to play for an unknown reason, and give me a #19 or #21 at the bottom of the error. could the lag and error be caused due to the 32mb of video memory i have? thanks