table space id (no replies)

Hi, I'm trying to an InnoDB tablespace problem. I managed to created a new table has (in .ibd file) the same tablespace id as what's in InnoDB data dictionary. But now the error message is saying a different tablespace id in "memory cache"

* Tried drop db1, but that didn't solve the problem.
* Any way to clear the so called "tablesapce memory cache"?

Thanks.

Here is the error message:
130827 10:07:54 InnoDB: error: space object of table db1/tb1,
InnoDB: space id 581 did not exist memory. Retrying an open.
130827 10:07:54 InnoDB: Warning: trying to init to the tablespace memory cache
InnoDB: a tablespace 581 of name './db1/tb1.ibd',
InnoDB: but a tablespace 624 of the same name
InnoDB: already exists in the tablespace memory cache!