I think I might have this problem. I'm mostly referring to two programs: one is a game and the other is ATI's television program for my AIW. I have 2 36GB raptors in raid 0 (I know, I know, RAID 0 suxxorz, etc. I put them in raid 0 "just because", since I needed the extra space anyway, and the 74GB versions weren't out yet). I'm getting some lockups when using the ATI software while recording TV to my HDD. Also, while playing MVP 2005, I am seeing some pretty strange HDD access activity. The game pulls the announcers' speech off the HDD as the game plays, so the HD is constandly seeing activity. However, sometimes I will see 10 second pauses while, presumably, the announcers' speech is loaded in the middle of a play. Also, from time to time, while these pauses occur, it sounds like one or both of my drives are spinning up or down, I can't really tell