this is a longshot, but
did you just install / update spyad or equivalent bad site blocker? the bet in the name may trigger blocking....
and sometimes it's a dns problem, either with your isp or any server / relay on the web between you & betcris-- try surfing to it without the www & with-- toggling this way is often a great workaround... When a website changes ip address, sometimes the change doesn't make it to to all servers, including your isp's-- this app(treewalk) automatically takes care of that, & also quickens your surfing due to the way those changes are not just retrieved, but cached locally:
http://ntcanuck.com/ btw those on win9x need to get instead the one called Bindle...
good luck.
Also, i always recommend Maxthon Combo to all IE users-- runs on top of IE engine, but has more features & is safer-- and it doesn't accomplish the latter by just disabling features & settings as MS likes to do(just got updated today again btw):
http://www.majorgeeks.com/download1244.html