Hello, Facts: Projector : Plv-Z2 Source : HTPC Connection : DVI Video Card : ATI Radeon 9600pro Resolution : 720p Pixel mapping : 1:1 Screen material : Blackout cloth PJ distance to screen : 285 cm Screen diagonal : 232cm Viewing distance to screen : 550cm Problem: When I turn on the desktop I notice on some areas of the screen icons who are out of focus, others are sharp and brighter than the ones who are OOF. I tried to adjust sharpness on the PJ but that didn't change anything. When viewing DVD or TV all seem normal. What could be causing this? Tanks, Christophe. Belgium.