Some Speculator users (including myself) report that on some computers running
Window Vista, Speculator hangs with a blank blue screen when attempting to proceed to the Calculations screen (i.e. all the ratings and readouts).
This relates
not only to Spec160, but also to earlier versions of Speculator such as SpecPA, SpecNP, Spand, etc. In my tests, all three of these Spec versions failed to run on 2 of my Vista computers, but ran OK on a 3rd Vista computer. Validator4 ran fine on ALL Vista computers.
If you encounter this problem with Speculator, the recommended solution is to install
Dosbox, a DOS emulator environment and run Speculator within the Dosbox. Get Dosbox here:
www.dosbox.com Also read this Wikipedia article about running Dosbox on Windows Vista:
http://www.dosbox.com/wiki/Dosbox_and_Vista
Ted