What would cause FP to freeze when adding a record?

[Boaz Bezborodko]

  I have some automated operations that import orders from from 
customer-supplied files.   This morning I noticed that not all of them 
had run so I tried running one manually.  It seems that nothing can open 
a new and that the window freezes whenever I try to add a record to that 
file.

I know that the computer that runs this automatically still has the file 
open, but I don't know what state it's in and I won't get to it till 
tomorrow morning.  In the meantime, what would cause this to happen?

I'm running FP 5.6 Windows looking to a Samba fileserver.

Thanks,

Boaz