The sudden inability to print properly - either not at all, or with incorrect formatting - usually means that the main file of the set of 9 files that comprises your Invoices information (in particular, the file with the "*.inv" extension) is damaged or is not usable in your current computer/printer configuration. Often, switching printers on a system can cause these kinds of problems, but this is not necessarily always the case.
The following has helped other customers fix problems similar to yours. It is recommended that you make a backup of your current working invoices file before proceeding. To make a backup file, open your program, then choose Backup from the File menu and follow the instructions on the screen.
Here is a set of steps you want to follow that may alleviate your printing problem in the Invoices program:
First, you will need to create a new invoices file with the same name as your current invoices file, but create and save it to a folder other than the Data folder (for example, your My Documents folder).
Do this by opening the program and going to File and then New File. Here, create your new file and give it the EXACT same name as your current working invoices file (if it is not exact, this will NOT work at all, so be sure as to what your invoices filename is). Then, change the Look In folder at the top of this window so that it says My Documents (NOT Data as you already have your current file in there). Click Open to make this file and then Cancel the Setup wizard that starts. You should now have a blank, new file with the same name as your previous invoices file that actually contained your data.
After you do this, simply close your program (do not make a backup if asked) and open your My Documents folder using the Windows Explorer. You will see 9 files in your My Documents folder that have the filename you just created. For example, if my original file was called "company invoices", when I make another set of files with the same name, I would see in my My Documents folder the following set of files:
company invoices.INV
COMPANY INVOICES_PAY.DBX
COMPANY INVOICES_PAY.DBF
COMPANY INVOICES_INV.DBX
COMPANY INVOICES_INV.DBT
COMPANY INVOICES_INV.DBF
company invoices_FRM.TBL
COMPANY INVOICES_DET.DBX
COMPANY INVOICES_DET.DBF
So in your case, locate the one that is called ".inv" (it would be the ONLY one with the icon that looks like cash coming out of an envelope). Right-click that file, and select Copy from the menu that appears.
Now you will need to paste this copied ".inv" file in your program's Data folder, replacing the ".inv" file that is already there. This will re-set your invoice format to match your computer's current printer configuration, and fix most printing problems. However, doing this sets the Invoice Design back to the program's default design. You will need to re-customize it's look on the Customize tab in the program once everything is working again.
The location of your Data folder depends on the version of the software you are using. Use either My Computer or Windows Explorer to browse to the main program directory of the software:
C:\Program Files\MySoftware\MyInvoices\
Open your Data folder and go to the Edit menu and choose Paste to paste the copy of your file from the My Documents folder here, and therefore over-write the bad file. You will get a message asking you if you want to replace the file to which you will answer Yes. If you do not get this message, then you did not get the name of the file to match exactly when you created your replacement file. Start again from the beginning if the message does not appear.
If you successfully over-wrote the bad file, launch the program. When you open your program, you should be able to print again and see correct formatting. As stated before, any customization you might have done to your Invoice Design will be reset to the default design, but this can be recreated on the Customize tab in the program.
If your invoices print fine again, then you are done. You can later go back to your My Documents folder and delete the 9 invoices file you created there, since they are no longer needed.
If you do not feel comfortable doing what is in this set of directions, it is strongly recommended that you contact Technical Support.