URGENT, myisamchk error

[Santoni Arnaud]

Hi all,

We've got some important trouble with some tables.
we are working under linux redhat with mysql 3.23.47

When we try to repair this problem we've got:

>myisamchk -e domaineinstances.MYI

Checking MyISAM file: domaineinstances.MYI
Data records: 365096 Deleted blocks: 0
- check file-size
myisamchk: error: Size of datafile is: 17524388 Should be: 17524580
- check key delete-chain
- check record delete-chain
- check index reference
- check data record references index: 1
myisamchk: error: Found key at page 17312768 that points to record outside datafile
- check records and index references
myisamchk: error: Record-count is not ok; is 365092 Should be: 365096
myisamchk: warning: Found 365092 parts Should be: 365096 parts
MyISAM-table 'domaineinstances.MYI' is corrupted
Fix it using switch "-r" or "-o"

when we perform this command one more time, we have resolved the problem, but it comes back a few time later...
When have too, this kind of problem, alternatively

> myisamchk -e domaineinstances.MYI

Checking MyISAM file: domaineinstances.MYI
Data records: 365107 Deleted blocks: 22
myisamchk: warning: 1 clients is using or hasn't closed the table
properly
- check file-size
- check key delete-chain
- check record delete-chain
- check index reference
- check data record references index: 1
- check records and index references
myisamchk: error: Record-count is not ok; is 365105 Should be: 365107
myisamchk: warning: Found 24 deleted blocks Should be: 22
MyISAM-table 'domaineinstances.MYI' is corrupted
Fix it using switch "-r" or "-o"

Someone to help me, pls

thanks in advance

Arnaud