I was sometimes 5-boxing on a 2GB RAM notebook with low graphic settings. But I experiences lot of problems, esp. in the lvl 60-70 content. Now I got a newer notebook VISTA 64 Bit with 4 GB RAM and I can 5-box everywhere, in outland now as well. Shatrath is still pretty laggy :-) But since I got 2 notebooks now I 3/2 - box normally.