I am trying out this product which seems to work ok however I do not show any values in any balance columns, which of course means the data is not available in access. Which data field do I need to use the balance as shown in the customer viewer in QB. also, I have two custom fields for the customer, how can I turn them into table entries and not free entries?

For balances and stock quantities: the option "Nulls" is the default when you install QODBC. This means QODBC will return NULLs for all fields that cannot be kept in sync, "Dirty Reads" - means return the most current value that was loaded into the optimizer cache, and "Real Time" uses the slower method to get the data directly out of QuickBooks making sure you get the most current value for the requested fields. (Real Time is the previous method used). You need to change the option to "Dirty Reads" for fast operation.

See: How do I setup the QODBC Optimizer? Where are the Optimizer options? for further information.

Make sure you have no QODBC connections active and reset you optimizer settings. Close the QODBC Setup  Screen and then reopen it and confirm whether your settings are still changed. If not, reinstall QODBC using you current Windows login.

Note: If you are using Windows XP, you login account must be a administration account.