[OpenLayers-Users] Tile "grout" on Mac/Firefox

[Warren Vick]

I've been getting an intermittent problem with OpenLayers when running on a Mac with Firefox. The problem is that there is a while 1px outline around each tile in a TMS layer. At a recent conference in the UK, colleagues an I were joking that this was "tile grout". I can even see the problem on openstreetmap.org

Has anyone else seen this problem? I haven't tried it on other Mac's yet to see if it's a problem local to my machine. The other odd thing is that it seems to be intermittent.

Regards,
Warren