Summary: I've tried everything I can to correct this but when I get text sharp in one corner, the other gets blurry. Thinking it was an axis problem, I adjusted it every way I could but now am determined that it is a problem with the lens. Also, it decides to go wonky and cycle through display modes (just guessing...like when you switch between theater and presentation modes) for a few minutes every few days. This is annoying when giving presentations.
Summary: Buy a different brand with better support especially if you want to connect to the projector using TCP/IP.
Pros: Nice bright display with pretty decent sharpness for a projector.
Cons: The projector failed in less than 1 week. It started automatically powering down after about 15 minutes of use with no overheating LED warnings. Viewsonic replaced it with a new projector with a manufactured date 1 year newer than what newegg sent me. Viewsonic wireless adapter only supports WEP (sold separately). DHCP server is either on or off so thier is no way to bind it to just the wireless card. vsPresenter software is NOT COMPATIBLE WITH WINDOWS 7! vsPresenter ...
Excerpt: This projecter has a super bright image and at 1080P there were times when image quality very high. Unfortunately, there were many more times when the image was just plain bad. This would probably be a good projector for presentations, but not for home theater. The the image quality suffered with a variety of media. With blue ray - the image quality was usually very good, and with a 1080P HDTV signal it was usually pretty good too (not always).