Thanks for getting back to me about this guys...
I've gone back and checked everything you've suggested to see if I missed anything (my heart skipped a beat when you mentioned the year - but I at least had it right!)
-Correct long/Lat for my exact location in my site options.
-I'm pointed true north. I spent a good deal of time a few years back to ensure I had a correct bearing, so I'm confident that this is okay.
- I have daylight savings switched to 'yes' and my GMT is set to +11 in 'site' settings.
I might try and change it to 'no' with a +10. However, I did mess around with the +10/+11 settings last night, without changing the actual real DLS time on the Autostar.
It's kind of odd that it works for 31/01/14 but not for 01/02/14. Maybe it is a bug?
If I load up an older verion of the software, I wonder if it overwrites the new version or if I should remove it first. I'll have to look into it.
Let's see how it goes.
Thanks again!
Wanga