Hi Al
Rob used to do a scanangle chart, may even have been available as a .pdf
This takes all the hard work out fo calculating scan angles. You basically put it at a set distance from your projector and adjust your image to fit one of the pre-drawn squares on the chart. This then tells you the exact scan angle without the measurements.
I've had a look for it on Rob's website but it doesn't appear to be there. I know he was giving these away at one of the early LEM's, perhaps you could drop him an email.
Have you had a look at the software settings, things such as line anchors and visible line settings. Adjusting these may possibly help.
I'm sure I have a chart here somewhere if you're unable to get one, just let me know and i'll have a hunt for it.
Cheers
Jem
Quote: "There is a theory which states that if ever, for any reason, anyone discovers what exactly the Universe is for and why it is here it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another that states that this has already happened.”... Douglas Adams 1952 - 2001