In article <20040307180046.67a63cc4.dbolgheroni@sigmanet.com.br>,
	Daniel Bolgheroni <dbolgheroni@sigmanet.com.br> writes:
> But I'm using XFree86 4.2.1 and the 'sis' driver.


We've fixed a lot of these problems in XFree86 4.3.0. You should perhaps
try to update the XFree86 on your system. If the problem still exist
in XFree86 4.3.0 ("netbsd-1-6" branch in CVS) or XFree86 4.4.0 please
use "send-pr" to submit a bug report.

	Kind regards

-- 
Matthias Scheler                                  http://scheler.de/~matthias/