i have experienced it.... even when there is 1 or 2% of CPU usage, almost 80% of memory is in use, when it was in aero theme.... but the same is slight different when it run in classic theme...it takes 55% of memory.... do anybody has a good list of services or programs that needs to run and rest can be 'killed' or 'end process'... can somebody share.....
otherwise everything is cool and good in vista.... indeed it is a good than xp
More memory usage is good
! (Well, atleast in case of Vista). Vista uses your excess memory to cache/prefetch data from your hdd which means programs will load faster and your idle RAM won't go to waste.
If a program needs more RAM, then vista will make way for it.
This is where XP has a big limitation. 1+ GB RAM on XP almost always goes to waste since the OS and other programs can't make good use of it. This is why there are programs like SystemBooster XP and eBoostr to cache data in the RAM