POST table crashing
 

I am having problems with the forum since today morning and i get this errors

Database error in vBulletin 3.7.4:

Invalid SQL:
SHOW CREATE TABLE post;

MySQL Error : Table './albforum_forum/post' is marked as crashed and last (automatic?) repair failed
Error Number : 144
Request Date : Tuesday, April 20th 2010 @ 04:48:52 PM
Error Date : Tuesday, April 20th 2010 @ 04:49:48 PM
Script : http://albforum.us/admincp/backup.php?do=sqlfile
Referrer : http://albforum.us/admincp/backup.php?do=choose


all related to the POST table any sugestions

when i try diags on the table status i get

post MyISAM 10 Dynamic 68908 1034 71257276 281474976710655 64366592 0 1717713254 2008-02-29 20:30:57 2010-04-20 01:29:40 2010-04-20 16:30:55 latin1_swedish_