ViewSonic N3000W I have a picture on my screen, but right side has a blue tint.

you need new power supply board.......

take it down turn it on the fan may be magnetizing the frame.you may also try running a magnet over the bulb to pull the blue back into its place

here the ebay power supply for you TV
http://cgi.ebay.com/Viewsonic-N3020W-30-LCD-TV-Parts-Power-Supply-Board-/400152574059?pt=LH_DefaultDomain_0&hash=item5d2af3b86b

Your TV has a DVI input connector, but no HDMI as you noted. Adapters (fondly called "dongles") are available to convert from the DVI connector to an HDMI jack so you can connect your HDMI source. Search for "dvi to hdmi adapter" with your favorite search engine and you will find them.

As for settings, this set has 720p resolution. Make sure your source is set accordingly, and you should be set to get the best quality you can with the connections available.

Please take a moment to give this solution a fixya rating if you've found it what you needed, and thanks for asking here!

Your inverter is bad. i think there's 8 transformers.. one for each backlight.. one of them is sorted and is bad.. if you know something about electrics you can try to find one transformer or you can try to find the whole inverter.. good place for parts is http://www.lcdparts.net

dont know the solution.
also not sure what a condensator is?

Most likely the convergence is off. Could you post the model number so I can provide you with specifics?
Thanks,
Dan

have the optical engine replaced

It seems that the power fails quite often with this one burning the Inverter boards transformers. OZ960G chip may not be broken, so try getting a new power from somewhere. Measure the transformers. suppose to be somewhat 5 ohms. tolerance is +-1.5 ohm. of more, replace.

Some condesator gone bad.. remote control IR eye needs 5V voltage but now it's not there so i think you need to replace bad condesator.