nvidia portrait mode: tearing while scrolling?

[ianmills]

I have a nvdia 9600gt and while it works fine in landscape, it has an annoying problem with tearing in portrait mode when scrolling.
I made a video to demonstrate the difference:
http://www.youtube.com/watch?v=xihLOVhUI1M


This problem is present in both win xp and windows 7. I am using irotate (http://www.entechtaiwan.com/util/irotate.shtm ) for screen rotation. I previously had a radeon 9500 and it does not have this problem.


Do the newer cards still have this issue? I would like to get a shiny new nvidia 560ti but I definitely won't if it still has this issue.

Thanks

 

[sangyup81]

in my ATI HD 5770, the ATI software that comes with the driver can handle the screen rotation