That fixed it; I just needed to identify a default browser - thanks.

I am using the latest version of Pegasus and updaed to Windows 10 today. I am trying to register for a product. The product company sends me an email to confirm my email address for the account. In the body of the email, I have to click on "confirm" to indicate that I am, indeed, the person who registered a product at their website. When I try to do this, Pegasus give me a message stating "Pegasus Mail for Windows has stopped working" and searches for a solution. Then it shuts down. 

Any suggestions? 

[quote user="Art"]Any suggestions? [/quote]

See this post for managing crashes.

I follow your directions in trying to download the most recent version of renderer and windows 10 opens a directory. No file downloaded. Hmmmmm. Confused

[quote user="Art"]I follow your directions in trying to download the most recent version of renderer and windows 10 opens a directory. No file downloaded. Hmmmmm. Confused[/quote]Sounds like your default browser isn't properly recognized. Try the different options (except for Use URLProxy.exe) on Tools => Options => Hyperlinks, and maybe try (re-)setting your system's default browser (I have no idea how Win10 works with regard to this).