[mabee]

Hi!
This is my second try at using calibre, and i´m really happy. Now my library is in order. I´ve been using it for about 3 months and i´ve added 15997 books, done conversions and reading in my pc. I was using calibre in a pendrive with a backup copy in my pc, but the library became too big for the pendrive, so i decided to send it to the pc. While using it from the pendrive the database suffered some problem i tried to run the calibre library maintenance and check the databse integrity but i get this error:ERROR: Error: Failed to check database integrity

Traceback (most recent call last):
File "site-packages\calibre\gui2\actions\choose_library.py", line 94, in run
File "site-packages\calibre\library\database2.py", line 2452, in check_integrity
File "site-packages\calibre\library\sqlite.py", line 232, in run
DatabaseException: database disk image is malformed
RemoteTraceback (most recent call last):
File "site-packages\calibre\library\sqlite.py", line 181, in run
File "sqlite3\dump.py", line 49, in _iterdump
DatabaseError: database disk image is malformed

I´ve searched this forum and google but i could not find a fix, i also ran "calibredb restore_database" from command line but it seems like nothing is fixed. Also i updated to calibre 0.7.31 and it was not fixed, i´m running calibre in windows vista at the pc and at work from windows xp.
Could someone help me please?
Mabee