Been on the internet multiple times.. it's an issue that keeps popping up if i close down the computer and then try to go on in offline mode, it's really an annoying bother. It's the one reason i don't use steam more than i do.
You misunderstand: You're doing it wrong. There's an option in the Steam Main-menu (Labeled "Steam" to the left of "View, Friends, Games and Help") that says something like "Go into Offline mode". You have to do that and it'll save the settings and start the program without being online. You can't just keep Quitting the program in Online-mode and expect it to work without activating that setting.
Offline mode has never not-worked for me on any computer.