Hi, Lyndon,
From the release notes and Readme help for GL9.2A(150903):
"In Ledger 9.2A, posting or unposting batches on a station while the Financial Reporter was open on the same station, at the time as users were in Ledger on other stations, in some cases caused data integrity errors. You can no longer post while the Financial Reporter is open on the same station. If you attempt to post the warning “Financial Reporter is running, you must close it first. Use ALT-TAB to switch to it.” will be displayed."
I suspect this is what they are running into.
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Regards,
Softrak Tech Support