Just a quick note here, when using the navigation windows, some may seem unusable. This is usually fixed by restarting OC, but if not, try going to Window menu and restart the item you're having trouble with.
Also, sometimes everything will disappear off OC, such as the workplace. This is usually fixed by moving the program to the left or right desktop.
I have not gotten any errors off the program yet, but contact me if you do.