See if this link helps:

http://fox.wikis.com/wc.dll?Wiki~CDXCorruptionChecklist


>Hello All,
>
>I have a currupt index problem that keeps poping up. Our master table has 350,000 records, 140 fields and about 50 indexes. About once a month when someone turns their computer off with proper exiting we get corrupt indexes and need to reindex. All of the days data is lost even though I issue a Flush command every time a record it exited. I don't have these problems with smaller 10,000 record tables?
>
>Any ideas? Also does the flush command also save memo fields to disk?
>
>Thanks in advance,
>
>Jeff