Everything. Windows is a pig to use. The Start Menu takes a few seconds to lad (dont sound like much but it gets annoying fast). Apps run really slow, and its just a pain to use. It clogs up all the free RAM, making everything else run really slow.bankshot said:Out of curiosity, how is it too slow for you? I've been running it for a few months now (2.0 GHz Macbook, 2 GB RAM) and it screams in every guest OS I've given it. 3-D graphics is the one serious bottleneck as everyone knows, but that doesn't affect me too much as I do primarily software development and compatibility testing. Near as I can tell, most of that stuff runs pretty darn close to native speed.