my macs aren't as stable as before, they're starting to act like Windows machines, at first, I thought it was only my Intel iMac, but my 2+ year old PowerBook is starting to do the same, here are the symptoms I experience, let me know if anyone notices the same or can help out with fixing them: 1. My iMac keeps reducing its brightness, even though I told it not to, so I checked "reduce brightness" then restarted, then unchecked reduce brightness, it worked, never reduced brightness, but then I shut down, then turned it on the next day, the brightness reduces, I check the energy saver, and "reduce brightness" is unchecked, why does it think it should reduce brightness? 2. I have iScroll on my PowerBook, ever since it was released, and I've been on the same version since last summer. Now for the last month or so it started to disable itself. I would be browsing or something, suddenly I have no 2 finger scrolling, I check Preferences, and it's disabled, I enable it, few hours later, it disables again. 3. on the top in the menu bar, the icons disappear (volume, airport, bluetooth, clock), then when I hover my mouse over them, they appear once again. (Both Machines) 4. Mail sometimes won't quit, it closes the window when I tell it to quit, but Mail still doesn't quit, after a while it stops responding and I have to force quit. happens on both machines 5. On my iMac, if I let it stay idle for longer than 10 minutes or so, or if it's sleeping, then come back to use it and click on an app like Safari, iChat, Mail, etc. the Dock freezes for a few seconds, then the Safari icon bounces more times than I can count, then it finally opens, this happens sometimes with a beach ball. What I have to do is, when I come back to the iMac, I move the mouse, and wait for a minute or so, then everything works perfect, but I would prefer I can open my apps as soon as I awake it or move the mouse when it was on idle. However, the computer is super fast, but it seems to have problems with startup. It's like me when I don't pay attention in class then the professor says to me "answer that question" but I wasn't focusing then I panic and become unresponsive, is this normal? cause my PowerBook never does that, if I leave it for an hour, then come back to it, everything works smoothly. for now, this is what I experience, anybody else have something like that?