If you're getting a black screen try clicking on the full screen option and let the picture load.. and then unclick the full screen ... sometimes if I accidentally resize the preview screen I'll get that black screen too, but going to full screen and back usually solves it... as does restarting the program......
if you're only seeing water then you're camera is somewhere out to sea
You'll want to go to the objects tab , and then the camera tab that appears below it a bit ...
you'll see the button 'set by mouse' now you can click somewhere on your map and the camera will start at that position instead of floating out in the ocean ;D
:cheers: