Here is one nice find... looks like ...MultiSync LCD2190UXp is a 21 inch version of NEC MultiSync LCD1990SXi mentioned by Tenox as a perfect display. I compared both manuals and yes both have expansion scaling off - and both support 1280x960 at 60Hz by interpolation. Manuals covers look also identical for this LCD series. I have also looked at other NEC displays in wide aspect ratio like NEC MultiSync EA221WM (22-inch) and that one also supports 1280x960 at 60 and 75 hz but it does not list expansion scaling off so I don't know if that one would work.
Anyone know if they had larger displays from that LCD series maybe 24 inch ... that would be really cool
I found MultiSync LCD2190UXp locally and will be getting in tomorrow and will report here