Cant integrate ladders

[Ryle563572]

Hello,
Since I bought Rock Band (end of may 2008, I'm in France), I can't integrate ladders/leaderboards in guitar or drums, but with mic it runs perfectly.
Every time I want to see leaderboards for solo career with guitar or drums, I get this message :
"Non classé! Tu dois jouer pour intégrer le classement" which means "Not ranked! You must play to be in the leaderboard".
I finished hard career on guitar and normal career on drums, so I think I played enough to be ranked (by the way, I think playing only one song is necessary to appear in). The microphone doesn't have this problem, I can see my position (although I didn't finish hard career I started with).
Does anybody know how to fix this ?
I want to compare my score with my friendlist :p
I played online with both instruments too ...

Thanks a lot

[Project_Mercy]

I"m guessing medium drums and hard guitar isn't going to get you a rank. People have finished expert on drums (with mediocre scores) and are halfway down the board.

Vocals it's much easier, since not as many people sing.

[davidshek]

I"m guessing medium drums and hard guitar isn't going to get you a rank. People have finished expert on drums (with mediocre scores) and are halfway down the board.

Indeed. There are only 100,000 spots on the Leaderboards. If your career score isn't higher than person #100,000, you won't get on it.