Online Gambling software problem

Hello, I have a software issue. When I try logging on to internet gaming sites that use Vegas Technology software. It was fine for months now I get message "Problem with ID or password. Call support at ....." I've called them. My account is ok. They changed my password but that didn't help. I unistalled. Searched the registry and removed any reference I could find. I can log on from my wife's pc. There support center has no clue. Thanks