I'm using InDesign CS5 (v 7.0.4) on an iMac - 2.93GHz i7 Core with 12GB RAM, running under Lion 10.7.2.
Files take a relatively long time to save. A 6MB file takes 5-6 secs in CS5 when it is instant in CS3. Is there some caching going on that I can adjust? Hopping between files is slower than it used to be.