Radeon HD 4890 1GB / Vista Massive avatar distortion w/lag

This new computer of mine plays everything max settings, but even on lowest settings in SL, avatars slow it down , and often large bulky boxes and walls pop out of avatars, so I know it's rendering incorrectly, ive tried changing all the avatar rendering options and antialiasing options, no luck.

anyone know a solution?

this video card is a BRAND new release, and i have the latest drivers.

thanks

It's a problem with ATI's drivers and SL.

Do not use Catalyst 9.4 (not sure if your new card works with older drivers tho). Disable Catalyst A.I. in Windows driver settings and disable VBO in the SL graphic options.

Try Cool Viewer which uses a modified OpenGL implementation than the official viewer.