The admission came after the two-run loss to the South Africans in a Twenty20 match this morning.
''It's a hard game to take very seriously at the moment, because you've just got to go out there and swing pretty much straight away,'' Ponting was quoted as saying by the Sydney Morning Herald.
''We've played three or four games of it now and we probably still haven't come to grips with it properly. We're learning along the way and guys are still taking the games fairly light-heartedly,'' he added.
The Aussie skipper who has been critical of the format said he is beginning to have a change of heart after the seeing the response to the games.
''My position hasn't changed, but it might have to change a little bit as we go on. If we're going to be playing more and more of it, we're going to have to look at starting to take the game a bit more seriously.'' However, Ponting said ICC will have to think long and hard before holding a Twenty20 World Cup.
''The way that it has been used to promote the (Test and One-day) series, I think it's been used well that way. But now with this world championship on, we're going to have look at it,'' he said.