Depends on what the problem is.
If you go to a command prompt (Start, Run, type in cmd and click ok) and type "ping www.forces.ca" without the quotes what do you see?
You should see "Pinging
www.forces.ca [208.85.114.196] etcetc..."
That will at least tell us if the problem is resolving the name to an IP address or not.
It's probably a network problem with your ISP though, I've seen that before where the route to a site just becomes messed up for some reason and becomes inaccesable to a bunch of people on a specific ISP (works fine on Shaw for me).