I use MS Word for my job, which involves large documents with track changes. I use a 2011 MacBook Air (1.6Ghz i5, 4GB RAM) with OS X 10.8.2 and MS Word 2011 (v14.2.4). Word is rather sluggish and crashes a lot in track-changes mode - the screen goes blank, I get bizarre network and memory errors, and then it crashes totally and quits. I've lost quite a lot of work over the last few months. I've been using my wife's PC gaming rig sometimes (3.something GHz i7, 16GB RAM), and Word is super fast (can scroll through a 400 page document in seconds, etc) and very stable. However it's a pain to keep switching computers. My question is: if I install the Office for Windows under Parallels on my MacBook Air, will I get Windows-like performance from Word, or is it just going to be sluggish as hell and unstable, like the native Mac version of Word is? I would rather use Parallels than BootCamp, as I'd like a seamless system without the need to keep rebooting. I haven't tried it, because it would mean buying Office and Windows (and Parallels), and I'd rather see if anyone else has had similar experiences before I commit. Thanks!