>One would hope that MS' measurement of "system idle process" is exactly that, thus non corruptible.

So do I, but you never know, there are so many creeps around.

>I've seen 2 kinds of things slow my system down a lot.
>1) A process that has a memory leak that eventually uses all real RAM plus. Skype did (does?) this to me on some occasions.
>2) Having a mapped drive defned to a place/folder that no longer exists.
>
>I've had other things not so clear, but a re-boot always solves those.

Thank you all.

Jim, I followed up on your suggestion. Although I haven't noticed the difference, there were some dead end references in My Network Places.