In Claris Resolve, you have the ability to move one screen at a time with the command-arrow key combination. However, the RasterOps monitor extensions uses the command-right arrow and command-left arrow combination to zoom-out and zoom-in, respectively. Therefore, with such monitor extensions installed, the customer will get a surprise zoom when expecting to move one screen over.
The only resolution to this is to select the"Monitors" control panel device and click the "Options" button in the associated dialog box. From there you should be able to disable the zoom.