Popup blockers are handy for interruption-free browsing, but they can unintentionally prevent Shaw Webmail's composition window from opening. This happens rarely but is possible whenever a popup blocker is running.
If you are unable to launch a new email window:
Disable any built-in Pop-Up Blockers in the browser, then try again.
Disable any third-party popup blockers installed on your browser, then try again.
Check your popup blocker's settings for the ability to disable popups while on webmail.shaw.ca.
Hold the CTRL button (Command on a Mac) while clicking New, to bypass the blocker.