The Matrix Online site has been updated with the following information about yesterday's hotfix:

HvCFT OS Update 58 Hotfix:

Featured Changes

NVIDIA 8xxx Graphic Card Performance Workaround

The modellighting_enable variable can now be disabled (set to "0"), which may resolve a low framerate issue experienced on some video cards under Windows XP. See the Technical Support forum here for more details.

Bug Fixes

Some texture issues on pipes in the Datamine construct have been fixed.

Grab it today.