I can't imagine I am the only one having these problems. I had days of issues trying to make a reservation last week as the system was hanging on the login page. It seemed to be happening the same day there were reports of technical issues impacting AC passengers in Vancouver. Ultimately I had to clear my entire cache in Firefox to get the web site to work -- not the first time I've had to do this since AC launched its new Web site.
At the moment trying to login to the site to manage flight passes, I am getting an error message in all of my browsers
"We are currently experiencing technical difficulties. Please try again later or contact
Air Canada Reservations."
Really frustrating.