Attached Link: TClockEX

I use a small program for XP (Vista has it's own) called "TCLockEX" which works in the tool tray. It has a memory usage bar. Typically after Photoshopping an image I have to close PS and/or Reboot.

Great little Program

p.s. it also works with other versions of windows (except NT)

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Ockham's razor- It's that simple