I tried changing the pref to Graphite and opened Inkscape for the first time. It starts up with a dark grey screen, with what appears to be a halftone screen, upon typing the Inkscape app opens. When I close Inkscape the grey  screen reappears which I have to force quit to return to the OS.

Thanks for pointing me in the right direction.

Larry H

Florida

Mac Pro 2.66 5GB 2TB HD Leopard

Maxed out Mini PPC 10.4.11 Tiger

10.4 FCP HD Express

Shake 4.01

Inkscape