I must post that, after numerous failed emails to RealNav, I got hold of Mindstar as my GNS430/530 product, after reinstallation, would not re-register due to a limit.
After emailing Mindstar, I was contacted within 15 minutes, permitted a Remote Desktop Session to my PC via TeamViewer, and all was FULLY up and running (including RealNav) within 5 minutes!
I stand corrected in regards Mindstar in my previous post. Excellent service and VERY prompt in helping. The guy running the TeamViewer session was also very helpful and friendly. I don't work for them but, as a software engineer in an unrelated industry, I was very impressed.
Apologies to Mindstar! Not sure where RealNav went though..they never did get back to me.