Sorry for this OT subject, but I have asked this before on the mysql-list to no avail. Thought I give it a try on this forum, IF someone happens to recognize the problem. [MySQL v. 4.0.15, SuSE 9.0] Database: Dataset1, very small, all files together only some 75k. Everything worked for weeks, then suddenly this database became ReadOnly. Here are some facts: - All files in the directory Dataset1 are: [user: mysql | group: root]; permissions are 660. - MySQL supplies an utility - myisamchk - to check table integrity. It reports no problems. - Since the tables are MyISAM, making a copy of the database is as simple as copying the whole directory under a different name (e.g. Dataset2). If I do that (AND clone the ownership/permissions), Dataset2 is Read/Write. - If I rename Dataset1 to DatasetRO, and the rename the Read/Writeable Dataset2 to Dataset1, the "new" Dataset1 is - ReadOnly. - All other databases are Read/Write. (AND user/group are mysql/root, AND permissions are 660). I haven't found how/where to change database permissions within mysql, I have no idea where to go now. Any clues? rgds, /Marty