As with the previous beta's, having sound enabled for a Windows XP host increases the overall "OS X" CPU performance by over 20% for an idle (standard services, no applications running)Windows XP session. When sound is disabled, the CPU will hover around 10% in beta 6 and 10-15% in RC1. Does anyone else experience this with their configuration? Also noted when running Windows Media player v10, the "OS X" CPU shoots up over 100%. Is it likely that this performance will be improved?