I have the download from BLOB issue "mostly" solved, using the following code in the _SendFile procedure embed:
Doc:Document_Name = p_web.GSV('myDOCFileName')
If Access:Documents.Fetch(Doc:DocName_key) = 0
p_web.ForceNoCache = true
loc:done = true
If loc:done then return.
The key was setting the third line properly. I created a session variable called myDOCFileName and set this as each row of the browse is selected. It is set to Doc:Document_Name, which is the field containing the file name stored in the BLOB. I can view/download all BLOB entries now.
The problem with the form Save and Cancel button still remains. If I open the Documents Browse, then edit a record, the Save and Cancel buttons do not respond. I see the busy indicator in the lower right of my browser screen. If I comment out the _SendFile embed code (p_web.SendString(sendString,1,len(sendString),true)), then the Save and Cancel buttons do respond again. Any thoughts on how to deal with this?
By the way, Jane helped me get registered for the weekly NetTalk User Group webinar. If I don't find a solution here I'll join the webinar on Thursday.