Let me start by saying that this application worked until our server crashed, so I do believe that there is some kind of setting within the server that is preventing this from working once again, but our server is set to all default values for now.
dataGrid.dataProvider = someArrayComing;
Once more, all of this worked perfectly for months. We have a database of over 23,000 records. For now, each morning I run the PHP script, copy & paste the result set in place of the variable "response" and the datagrid loads within 20 seconds on Macs and 2 minutes on PCs.
For obvious reasons, I'd rather not be copy & pasting every morning as the db grows daily.