I fixed this bug by checking "video compatibility," but I thought it was worth reporting since it never used to happen before version 1.4.
The error is a bit difficult to describe, so I'll just show a screenshot:
When I move the mouse, the terrain and the objects move at different speeds, like they're being transformed badly or something.
This isn't necessarily an "urgent" bug (I think it's working OK now that I turned on Video Compatibility). I just thought I should report the bug in case you did want to fix it.
