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The projector has a 4:3 display panel (1024x768 pixels). When you send information to display in 4:3 mode, the picture spills over the top and bottom of your screen.
When you send stuff in 16:9 mode, the projector shows this on the screen as 16:9, but the panel area is still 4:3. This can't be altered. So the unused part of the 4:3 panel above and below the image still bleeds some light through. That's what you are seeing.
You can mask some of this effect by using light absorbing material such as black velvet above and below the screen. Alternatively you can replace the projector with one designed for home theater use which has a 16:9 panel to match the shape of your screen.
Shut down the projector and allow time to cool before the lamp is taken out to be examined for any dis-coloration. If so the lamp needs to be replaced, try to test using a leased lamp to confirm Also check for shift in the alignment of the lamp settings and also the Lamp alignment.
If possible, try to replace the VGA cable between the projector and the computer. A bent or broken pin, or a damaged wire, can prevent the blue or green (or both) portions of the picture from being displayed. The result is a reddish/pinkish picture.
As for the long time to project an image, this could be an extended warm-up time. How old is the bulb in the projector? Does the projector have an option to display the hours used and/or remaining on the bulb? Bulbs do have a finite life, and when they near the end of their service life, they can become more difficult to start.
Your problem is most likely your Blue and Green lens' inside the light engine. It's not something you can replace yourself. I worked for Philips for 14 yrs. repairing the LCD projectors the last 6 Yrs. Call philips and get the number of an ASC in your area that has repaired projectors.
can we see a picture of that?? I dont understand whatyour saying about the lines.. Are they differant colors or all red and do they make the pic bow?? does the pic look or have a reddish tinge to it?? is ther too much red in the picture??? Please let us know or let us see??