I too just started to have problems. Speed and connects ok until this am using Win98, Opera browser and Atguard. Turned Atguard off but still problems. Switched to IE5.01 and finally connected v-e-r-y s-l-o-w-l-y. Opera doesn't do javascipt so that may be a clue to erratic behavior. Currently Opera w/o Atguard is working. No "adforce" messages ever appear.
Still it wastes my time and tries my patience. All web other sites seem OK. Webflyer is OK, problems exist when I click on the Bulletin Board tab. Blah!!!