Thread:Project:Support desk/intrusions from print.css in vector and monobook?/reply (2)

The "Uncommitted DB writes" warning is usually triggered as a result of some other error message.

MediaWiki, when does stuff with database writes, it usually commits all transactions before ending the request. But it may happen that some error may make the code to not reach the appropiate "commit" instruction, and then, at the end of the request, there's a check for uncommitted transactions.

Do you see any previous error message? Try looking directly in the HTML source of the page, as it may be masked or hidden inside other HTML markup