I believe this is the same for V2010 as it is for V2007, have you tried using the right click context menu for the connector(s) in question? Select one or all connectors, right click, change the connector behavior to straight, and then back to right angle. This will remove all of the anomalous bends and twists.
Also, if, while you hold the <cntl> key down, you can drag and position end points, elbow points, and center points without disturbing the other parts of the connector. This would allow you to manually reposition / reshape the connector.
wapperdude