errorno: 4336-- even otherwise

[mon lax]

Hi,

CREATE TABLE `forum_watch` (
`watch_user` int(10) unsigned NOT NULL default '0',
`watch_forum` int(10) unsigned default NULL,
`watch_topic` int(10) unsigned default NULL,
KEY `idx_fw1` (`watch_user`, `watch_forum`),
KEY `idx_fw2` (`watch_user`, `watch_topic`)
) COMMENT='Links users to the forums/messages they are watching';


I get the error
#1005 - Can't create table './dotproject/forum_watch.frm' (errno: 4336)

can this help any better?

Regards,
Mon