Yesterday computer running Postgres re-boots suddenly. After that, select * from firma1.klient returns ERROR: invalid page header in block 739 of relation "klient" I have Quantum Fireball IDE drive, write caching is turned OFF. I have Windows XP with FAT32 file system. I'm using PostgreSQL 8.0.2 on i686-pc-mingw32, compiled by GCC gcc.exe (GCC) 3.4.2 (mingw-special) Why the corruption occurs ? How to avoid data corruption? Will NTFS file system prevent all corruptions ? If yes, how to convert FAT32 to NTFS without losing data in drive ? Andrus. ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match