[quote user="tomdriver"]I use Firefox with Windows 7 Professional.[/quote]

Thanks, I was asking since this issue appears to happen more frequently on Windows 10 with its two "native" browsers and IE not being the default.

Pegasus has begun to misbehave when Ieft click on a hyperlink in an incoming email.  Instead of invoking my browser, as it used to do, it invokes Windows Explorer.  Very odd.  However, if I right click on the link it does invoke the browser in the normal way.  Can this be fixed without reinstalling Pegasus?  If so, how?  I'm running Pegasus Mail v4.7.

[quote user="tomdriver"]Can this be fixed without reinstalling Pegasus?  If so, how?  I'm running Pegasus Mail v4.7. [/quote]

Try resetting your system's default browser: First check Tools => Options => Hyperlinks, if you can't solve it modifying these options check the respective Windows setting (it might help to change browsers back and forth). What version of Windows and what browser(s) do you use?

Thank you.  Changing the default browser and then changing it back again seems to have cleared up the problem.  I use Firefox with Windows 7 Professional.