I am unable to use the mouse in the remote provided with Optima. Can anyone tell me how ? Optima EZ 759

Good morning everyone.... Finally in the process of upgrading/updating my theater equipment and I recently de-commissioned my 7 year old composite-video-out-only Pioneer receiever to an Onkyo that shoots out component video signal to my projector (Optoma EzPro 759) I left the composite line in place and hooked up the Component line with intent of getting Picture in Picture working.... I've got it working [I]once[/I] by accident ([URL=http://www.morningz.com/Upload/home/optima_pip.jpg]Screenshot[/URL] of my ReplayTV showing in the main screen via Component and the small window is my Sat receiever sending a composite signal) But for the life of me, and the user manual for the projector is useless in helping, cannot figure out how to tell the PIP to "get your signal from this source" Any fellow Optoma owner's have any tips? Thanks in advance

So [URL=http://www.morningz.com/photos/my_house/default.aspx]i recently setup[/URL] my Optoma Projector, ScreenWorks screen, my 7 year old Pioneer Reveiver (only has composite ins/outs), and also 7 year old Pioneer DVD player.. and for the most part am happy, but the image is kinda jaggedy with certain situations... So i am in the mark for a new DVD player (reading posts [URL=http://www.bigscreenforums.com/forum_topic.cfm?which=314&p=1]like this one in the forum already[/URL]), but damn, for a DVI or HDMI out DVD player seems to be mid to high $100's, surely less pricey [URL=http://www.cablestogo.com/product.asp?cat%5Fid=2816&sku=40292]than a 10 meter cable[/URL] i'll need to make it to my projector This is the reality of going digital, eh?