The Google Maps graphics display is divided in tiles separated by a grey zone. On fullscreen on my display (1920x1200) appear approx. 6 1/2 x 3 1/4 tiles.
System information: Dell Inspiron 9300 running Debian Sid ATI Driver 8.42.3 $ fglrxinfo display: :0.0 screen: 0 OpenGL vendor string: ATI Technologies Inc. OpenGL renderer string: ATI MOBILITY RADEON X300 OpenGL version string: 2.0.6958 Release $ uname -a Linux prometeion 2.6.22-elio.6 #2 Sun Nov 11 21:59:04 EET 2007 i686 GNU/Linux $ iceweasel -v Mozilla Iceweasel 2.0.0.9, Copyright (c) 1998 - 2007 mozilla.org The problem is related to Iceweasel only: Opera and Epiphany work correctly.