Why can't i log-in to a site from my PC?

[fistralboy]

I've been a member of Facebook for ages with no problems at all but for some reason i'm now unable to log-in from my computer. I can bring up the actual front page of the website to input my password and email details, and then when i click 'log in' the address bar changes from (e.g.) www.facebook.com/login to www.facebook.com/home as it always has done when logging in but thats as far as it goes. The progress bar at the bottom of the screen starts but freezes when its on only one or maybe two green bars and eventually the top of the screen reads 'not responding' and gives up! What could be causing this??

Its not a problem with my facebook account as i can log in as normal from another source, ie an internet phone. I'm the only person with access to the computer so i know no-one will have changed any settings. Also i'm not having any issues accessing other websites as far as i'm aware. Would appreciate any suggestions. Thanks

[samuelcat]

I had a similar problem with answerbank. Never had a problem and then suddenly it wouldnt log me in.
Turns out it was my anti virus. I switched it off,logged in ok and then turned anti virus back on. Been ok ever since.
Worth a try.