I've run TDS-3 with the latest database but it does not find any trojan on my system. If not a trojan, can anyone suggest why Outpost is giving me a warning that components have changed in one program after another — all of which I use to connect to the internet: IE, Opera, Crazy Browser, ePrompter, Eudora. I choose to block the program and that therefore cripples the program where it needs that internet connection to function. When I replace sytem files with older versions and reboot, I can again use the program for sometime before the warning appears again and I have to repeat the loop. AVG6, Avast, SpybotS&D and AdAware also fail to find anything. Cna anyone please offer some guidance to fix this problem?