Ok, I'm going to take a stab. The Object database connector (ODBC) SQL Server Driver is a software driver than translates data between two unique Stuctured Query langauge (SQL) databases. These little codecs reside on the client side PC. They gernrally are customized to translate between two specific databases. This allows for proper syntax matching.
It is possible that the folks with this error message have a ODBC driver(s)loaded on their PC, that gripes with uploading to the Forum SQL server, due to a header configuration conflict. The posts are OK, but the client PC gripes anyway.
I hit this server from about five different boxes, but I know each box's configuration and square up the ODBC in the control panels.
In short, It may be client-side rather than server side.
Hope this helps, I tried to keep the techie talk to a minumum.
Then again, it could be due to solar flares.