Can someone please tell me how I can get a new cord for the Vivitek Voyager AV500. I'm talking about the cord that connects the projector to the computer. I have a lesson (presentation) to do this Wedensday and I would really like to use the projector. Or if you can tell me what kind of cord I would need. I hope they have it at my local retail stores; Best Buy, Circuit City, Office Max, etc. Thanks in advance for your help.