I have clean gta from STEAM if you know what steam is and only thing i downloaded random was the gta_sa.exe because with steam gta.exe file you cant install samp so i have to get cracked exe for it to install samp.
And 2 of my friends have the same problem we all have steam GTA which is legally purchased and contains 0 corrupt files only corrupt file might be the cracked gta_sa.exe file idk, because my single player works fine.
Password is valid 100% and for my friends as well but as soon as we log on it's says invalid, we been inactive since the old version 0.3.7.
Maybe you can give me link to your gta_sa.exe file which is legit, because that could be the only problem from my side.
edit; my GRR which was closed
http://www.gta-sarp.com/forums/showt...07#post2122107