Episode 2 on diff computer?

[ktimekiller]

My main computer does not have a dvd rom, so i had to register on a different computer, then log onto steam on this computer, but it says i do not own hl2 episode 1, what gives?

EDIT: I had to manually relog, just closing steam, and reopening it does not work, must go to log in as diff user, then log in that way for it to work.