This morning AMD has re-released the
8.39.4 fglrx driver after it was taken down last week over
watermark problems. This latest 8.39.4 revision available from the
AMD website should properly produce the needed signature to remove this small annoyance from the display. No other changes had went into this release. If you run into any problems with the 8.39.4 driver, be sure to stop by the
Phoronix Forums.