We're seeing corruption of files downloaded using Download Manager (v2.2.7). Two bytes are being added to the front of every downloaded file, a space (0x20) and a linefeed (0x0A). PDF's still open okay, the reader obviously ignores them but Word .doc files won't open.
I gather this can happen if there are any characters outside of the <?php ?> tags but is the problem within Download Manager or is it in WordPress itself?
Any help appreciated.