Hi. I'm too late to help the original poster, but I can add something to the conversation for the next person who Googles the problem and arrives here:
That error also occurs if the SQLStatement parameter for the .MailMerge.OpenDataSource method is longer than 255 characters. I first came...
Hi. I just found this thread as I encountered the same problem with Access 2007. The solution for me was to that the "DataEntry" property of the form had been set to true (probably due to me saving the form after opening it in 'add mode' from the switchboard). Good design procedure is to...