If the Financial Reporter is having problems on Opening/Closing and the GLATREE.??? ( ??? being your data selector ) is gretaer than 200K bytes or so then delete the file.

In fact it is always safe to delete the GLATREE file as it will be recreated with the default settings when you open the Financial Reporter.

GLATREE contains the information shown in View | Accoubt Data or CTRL+F when in the Financial Reporter