I don't have a clue as to why this is happening. If I look at the date on the file, it was written to 3-12-07 and all is good (restored this file). The corrupt file was written to 3-15-07 and is twice the size 1.4 meg from 740 K. Asking all personal that make these entries, the only thing accessed yesterday was PO-L. No one made any entries in IN-B to part numbers.  
 
Sucks donut
 
John
 
P.S.
 
I am trying to duplicate it here this morning and I hope to find something more useful.....

One thing that I do not like with IN-B GUI is when you are assigning vendors to a part and you are deleting an entry it looks like you delete everyone except the one that is highlighted. You need to exit to the opening screen and come back in. Your entry is gone but this needs fixed.......
 
 
Still have not blown up BKSBVEND yet.......
 
Also, you can be in PO-L and IN-B at the same time in the same part number. If it has just in time record lock, I don't see a problem though.......
 
 
John