i downloaded simcivilization4 to my computer and i ran it and my computer said "MSVCR71.dll not found" so i downloaded an msvcr71 file and extracted to my windows\systems32 folder as i was instructed to do. that didn't help so i then went to "start" "run" typed CMD an then typed regsvr32msvcr71.dll and then rebooted. now it's telling me "DLL "msvcr71.dll not a valid windows image" *censored*? i just want to play my game. any ideas? thanks