Arma II not showing as owned?

Seems so, same with HB copies atleast for me...

Yeah, I bought JC2 for a friend once, and he said it's in his Library and he installed it but it says he needs to buy it.

Wait for a few days or hours, they'll fix it.

Same here. Have it in my game list, though on the store page it doesnt say i own it.

Yup same with me, they will fix it no worries :3 (I hope so)

Because it's "Arma 2" in library but it's "Arma II" on store.

This is simply cuz the base game is Free. The arma 2 you are buying is the hi-rez stuff and a hand full of other things. It will always appear as not owned. I bought Arma X and it does not have the Green bar on steam saying i own it, but i do.

I've had it for a while, 18 months or so and it's not showing as owned for me either on the store page. I couldn't tell you if it ever did, it's not something I noticed.

There are 2 different app#s for Arma 2 in the Steam database
For some reason the one from the Humble Bundle activates as the one without a store page. Although it sounds like people who bought from the store get that version too.

I bought Arma X from the Bohemia site back before Christmas and it doesn't show as owned on Steam. There are a number of other examples of this Painkiller: Black/Gold Edition and I think I had the same problem with Just Cause 2 which has been mentioned already. I wouldn't hold out hope for a quick fix (or even an long drawn-out fix) as the Painkiller issue has been going on since at least November last year.

They recently changed publishers (or dist.company). So there's more than one steam ID(app id) connected with that game. I think the problem you're referring to is due to that.

I have the same problem so +1

+1