This thread should contain the basics of how to calibrate your projector for best performance, and all that you will need is a test disk - Avia for NTSC, and/or Digital Video Essentials for PAL (though there is an NTSC version of that too). For HTPC use, either should suffice. There are others (Peter Finzell's for example) but those are the most common. DVE is available from Play: http://www.play.com/play247.asp?pa=srmr&page=title&r=R2&title=121810 I recommend the Peter Finzel disk over DVE since it is much easier to use, despite being in German. You can get it directly from the author: http://www.peterfinzel.de/pftd.htm You contact him via email, and he sends you the disk. You then send him payment in Euros. Use Babel fish or similar to translate the page if necessary. HD-DVD DVE is currently on pre-order from HMV: http://www.hmv.co.uk/hmvweb/displayProductDetails.do?ctx=2041;5;-1;-1&sku=573198 Excellent avforums video guides can be found here: http://www.avforums.com/forums/showthread.php?t=813910 http://www.avforums.com/forums/showthread.php?t=813735 Avia was available from Piero in the past, but not sure if he still sells it. To keep the thread neat and tidy with only the necessary calibration info, please post any thoughts, requests or comments etc here: http://www.avforums.com/forums/showthread.php?t=193362 Thanks to Gordon Fraser, Jeff Paynter and others who helped contribute. I just took the pictures. I'll be adding posts to the thread as I retrieve info and pics from the thread above... Gary.