Alright, I love Leopard. A lot. It kicks a ton of ass. But there are a few things that are about to drive me abso-fucking-lutely batshit crazy. For calrity's sake, here is my setup: -15" MacBook Pro, 2.4 GHz, 2 GB RAM, 200 GB HDD -22" Samsung SyncMaster 226BW LCD Display -750 GB Maxtor External HDD (attached via FW400) -Apple Wirleless Keyboard (new one) -Logitech mouse (uses IR and plugs in using USB) 1) This is the biggie...after I put my machine to sleep (either by closing the lid or going through the menu), I wake it up (which sometimes just doesn't work...but I guess that is a separate issue) and bam. No mouse. I can see that icon still and my keyboard works just fine...but the damned pointer will not move. It does not respond to either my movements with the external mouse OR the built in trackpad. I have to restart every time that this happens. 2) iTunes. I will play a song and sometimes it plays just fine...other times, it will play and then randomly "pop"(as in it will pause for a millisecond and resume play...almost like someone muted and then unmuted the volume in a series of about half a second). The songs affected include ones ripped from my iPod from Senuti, ones purchased after the Leopard upgrade, and ones obtained via torrent/Usenet. That is all I can think of right now...but I think there will be more.