I have a Samsung Syncmaster 2493HM with resolution 1920x1200, working fine. I would like to buy one more for dual-view. 2493HM is not sold anymore. New model 2494HM has a resolution 1920x1080. How would they work together in dual view mode? Should I choose 2443BW instead (1920x1200)?
More aboutdual view 1920x1200 1920x1080 panels
Yes, you'll want matching resolutions.
For seamless mouse movement having the same resolution is better. However, it is not required that both monitors be of the same resolution in a dual monitor setup.