I have a Samsung HLs5687w that I've had for about 9 years. Works great, but as with any dlp, dirt and insects get in through the vents. I want to open it up and clean it. I know to be careful on how I clean things. Is it just a matter of taking out the screws? I'll be doing it myself. Have any of you did it before? Sure would be nice to have a manuel telling how to clean it and what each thing is. There are a lot of videos showing how to take things out at the bottom of the back, but I want to take off the big covering and clean things in there. Thanks for your help.