>>>Hello,
>>>
>>>At one client it happens very frequently that the index of some tables gets corrupted.
>>>
>>>My guess is that the network connection is not very stable, but they checked the connection and say there should be no problems with the network.
>>>
>>>Yesterday a table got corrupted with the message (when appending a record):
>>>

Index file "c:\Cinemas\transactions.cdx" tag "Trusedt" is corrupted. Please rebuild it."

>>>
>>>After that we suggested to run the program locally on the computer. I issued a REINDEX and they worked again. After 20 minutes the same message appeared.
>>>
>>>Then I deleted the CDX file and created the indexes again. That seemed to have helped, but I am not sure what causes this problem.
>>>
>>>The other strange thing is that this program does not alter the field Trusedt.
>>
>>The fact that you don't alter this field doesn't matter, IMO - if records are added, all indices have to be updated.
>>
>>Assuming there really is a network problem, several indices might get corrupted.
>
>TrUsedT is the last index I have created on that table. This might be the reason that the message mentions that particular index.
>
>Besides of network problems, could there be any other reason for index or table corruptions?

Yes.
Someone turns off workstation without proper shutdown.
The HD has a flakey spot that is consistently being used. Either for new .CDX entries or for where the first few records of the CDX are stored.
The workstation has "sleep" enabled for the network adapter.
I see Novell is the network. Possibly some incompatible/incorrect version of the component on the workstation?

good luck