Similar problem here. A couple of years ago I bought one of the first S900 keyboards on the market and it worked great, until (after the warranty expired) the display started showing the right side repeated 5 times, in an overlapping and unreadable mode. In other words, I cannot read the right side of the screen for a good 1 inch, starting from the right edge of the screen, any longer. Therefore, there is no way I can correlate the buttons at the right side of the display with its functions that are normally shown on the display.

Since I needed to use the keyboard for my music production and I could not afford to stop for a week or so, I quickly found a workaround and I connected the video output of the keyboard to a 14"inch CRT TV that I had in the garage. Unfortunately I consider this just as a temporary workaround, because it's a bit cumbersome for me. For one thing my old 14" TV does not display a complete picture (not well adjusted by the manufacturer), so I am still missing some info on the bottom of the screen. Also, it is not very straightforward to correlate the buttons at the right side of the keyboard display with the image I see on a different display (my TV), at a different location.

I have owned several Yamaha keyboards (low and high end) and it looks like my high end ones appear to be more prone to problems than the low end ones. While I don't know if this a trend or a coincidence, I'd like to say that it is very disappointing for a customer to experience problems on the most expensive gear and makes me think twice before I buy another Yamaha product again.

After reading the previous postings, now I am afraid that even if I replace the display the problem may occur again and, considering the warranty has expired, it may become a costly proposition. If, as Spike says, Yamaha appears to ship new units before they are thoroughly tested and burned in, I would like to see a better commitment from Yamaha in terms of a longer warranty period (2 years?). I hope Yamaha folks read this postings and do something about its gear and its costumers, because the latter may become alienated and move to different and more reliable brands!

GC