When posting G/L entries for the first time in the "new" month I receive the following error: Access violation at address 0042264F in module "Tp5wdba.exe". Read of address 00000014.  Invalid Pointer Operation.
When this occurs it locks the DBA program and I have to to use Task Manager to stop DBA in order to exit the program.  Once I log back into DBA the entries will be posted, but I will have one one-sided entry to deal with out of the posted batch.  
Any ideas on what is causing the problem.  I have two separate companies within DBA, it happens on both of them each month.