Sum Error on Split Form

[anoob]

Hello,
I hope this is not too vague a question. I have a few unbound fields in the footer and header of my split form. All I would like to do is have them display the sums of certain fields, but I am getting an #Error.

The form can be seen here:
http://www.hangnailproductions.com/SumError.jpg

My Control is just

=Sum([Transaction_ID])

These are unbound fields.
For some reason this type of field worked on a normal form I had created, but not on the split form they don't seem to get... well, anything.

Any idea why this is?

(On a side note, I added a BG image to the Details section, and when I look at the hide/unhide list I now have an option to check "image24" on or off - which is odd. When I check it it shows up in the datasheet as an ampty column with the column title "Image24". I don't know if there is a way to prevent this image from being included on this list?)

Many thanks!

[anoob]

Ok problem solved - the field in the top right had a control source that was not resolving correctly, and it was causing every unbound field to show an #Error - but when I deleted the problem they all started to work.

Thanks.