I assume from the 'retrieval' message you got, you have recently installed the Adagio Inventory 8.0B upgrade. This version wants to convert the IC historical file so that the new functions like History inquiry can work.

Does your inventory item structure use a single segment? If so, you need to download the April 12, 2006 service pack from the website and install it. You can get the link from here. Perhaps it is worth getting the service pack anyway.

If you install the service pack and still receive the errors, the problem may still have to do with corruption in the historical file. The integrity check is looking at the 'new' historical file, not the 'old' one that is wanting to be converted, if you are using version 8.0B to perform the data integrity check.