I am still having problems with GNOME on OpenSuse 11.1 which I installed on my sister’s notebook (HP 550). The system is slow, the apps like Nautilus, Evolution (or Orca) are often freezing etc. Tried to find problem with the “top” command but found nothing “suspicious”. My sister uses this computer for normal office work, there is no known memory-hungry app (maybe Orca with voice via Gnome-Speech) which could be reason of these problems.
Yesterday, my brother looked on it and found that there is some error message related to Orbit when running Gnome apps (via terminal or also in normal way).