Is possible showing preview colours on shaded mode?

raytrace mode is often too slugish, using the shade mode it’s better but it seems that it doesn’t display materials previews… any way to fix it?

Hi -

It is by design that the Shaded display mode doesn’t display materials. Have you tried the Rendered display mode?
-wim

Btw. turning off shadows in the rendered mode allows you to have kind of a “textured” display mode without fancy shadows.