Data Missing from Income Statement

so the background is that Simply 2010 was installed on a new Windows 8 PC end of June or so, I have read that there are known compatibility issues with Simply 2010 and Win 8.  previously, user was using a laptop with Windows 7 and Simply 2010, I can only assume that the database was backed up on the laptop and imported on the desktop.  prior to installing the new Sage 50, I attempted to back up the DB on the desktop, would not backup, error message.  So I copied the database files to a memory stick and then copied to the laptop which still has win 7 and simply 2010.  opened the db fine, performed a backup and then installed sage 50 on the desktop and imported the backup, it converted it to the new version successfully.  Everything seems to be fine, except when running the income statement, data is missing from the time that the client began using simply 2010 on the Win 8 desktop instead of the laptop.  So data prior to June 30 or so is there, data entered after sage 50 installed is there, Aug 20 or so I believe, but June 30 - Aug 20 approx. not showing.  client can go to the invoices or cheques and see data from june, july, etc, just not pulling it into the income statement.  As a test, I opened the database i copied from the desktop, still in simply 2010 format on the laptop(win 7, simply 2010), and the same issue is there too, no data after end of June in the income statement. Seems like something didn't log correctly while using simply 2010 on the Win 8 pc.

please assist

thank you