Windows 7: Cannot Open Facebook on New PC in any Browser

My husband just bought me a new PC that came with Windows 7, and everything works great -- except that I cannot open Facebook. Although Chrome is my preferred browser, I have also tried opening Facebook in Firefox and IE, to no avail. Basically, it's timing out. The error message I receive in Chrome says, "Google Chrome cannot load the webpage because facebook.com took too long to respond." On the rare occasions I have actually gotten onto Facebook, I usually cannot open links, or it freezes, or I get booted off quickly. When I tried using the FB gadget on my Magic Canvas, it would not accept my FB password, even though I retyped it correctly multiple times. What is going on? (P.S. I'm not very tech-savvy, so I need detailed directions.) Thanks!

All other websites work without any problem I assume(?)
All other computers connected to same router can access facebook?

You are correct - no other problems that I've found yet, and the other PCs can access FB.