Hi, Have you guys had any joy calibrating your DLP using Digital Video Essentials or Avia? I only ask as I have tried using the tests patterns on various THX DVDs and on changing the constrast level it does not appear to have any effect on the 8 white boxes etc. I also read on the AVS forum that Avia and DVE are not ideal for Digital TVs. If anyone has any experience they would like to share it would be most appreciated as I do not wish to waste my money on either of the above if they are of limited use! Cheers Paulh P.s I own a Tosh 46"