So, the values were CW & CCW and not 90/-90/270. I tried your suggestion on a system with an nvidia card but it didn't work. I was confused at first. Later, I tried again with an old junk in the corner of my room that has a S3 Virge in it. Lo and behold, it WORKED (kind of). My monitor is now turned on it's side with 1/3 of the bottom part of the screen being blank, and another 1/3 off screen which can be panned to. Like 1024x768 screen on a 768x1024 monitor. I tried on anohter machine but with a S3 Trio with same results. About an hour of mucking around later, I found out that the Rotate option doesn't seem to work with the "nvidia" driver but works fine with the "nv" driver.
--== Anything can go wrong. It's just a matter of how far wrong it will go till people think its right. ==--