If the beginning balance for the current year does not match the ending balance for the prior year it is possible that End of year closing needs to be run to bring forward your balance.

The utility is located in the General Ledger module
File Maintenance
End of Year Closing.  
Select year being closed
Do not check Advance fiscal year or Close a short year
Click OK

This utility does not actually 'close' the year, as FIMS allows you to keep the General Ledger open for multiple years at the same time. 

To set Automatic End of Year to avoid further issues see article 24969

For more information on the End of year process see article 26309