Graphics properties question

[trimboy]

Just been put onto a different workstation and I now have all my graphics messed up. I would like to make all surface edges as thin as possible (0.13 seems to be the thinnest)and using "tools - options" allows me to do this for the external edges, but the internal edges of the surfaces stay fixed at 0.3. How can I change this as a default setting? On my old workstation this was not an issue as everything was set to 0.13, but I can't seem to do this on my new one. It's like working in cartoon world!!
Any help appreciated,
Thanks.