I have an database that i have been developing and zipping and sending to
someone else to use - this has been working fine for some time but for some
reason when i sent it to her last night it seems to have corrupted a little
bit.  Some of the controls are showing errors on the forms and some of the
queries have a format function in them and these have changed to say format$  
which is of course giving an error.

She sent the same db back to me and apart from the format$ which i altered
the buttons and controls work fine on my pc.  Could it be the zipping
process?  I zipped and sent it to myself and it was fine.  Any idea?  the
poor girl is beside herself!