I'v run into strange a problem playing streaming video from Netflix on my Apple branded Radeon 4870. Both Safari and Firefox crash when I try to stream Netflix video. Live connecting (i.e, without rebooting) either of my two displays (see sig) to my other card, Nvidia 7300GT, also results in a crash, irrespective of which of the displays is set as the main display (i.e., one to which the menu bar is tied). However, if I unplug from the 4870 and restart the browser (viewed on the display plugged into the 7300GT), I'm able to play the video. If I then reconnect the other display to the 4870 and move the Netflix window to it, I'm still able to play the video. Yay! Unfortunately, when I quit the browser and attempt to stream Netflix video again, I get a fail! When this first happened, I thought it was because my 30" ACD is not HDCP compliant; however, as you as you can see from the above description, that's not it (admittedly, Netflix video is not HD quality, so probably not subject to HDCP constraints). I have no problems playing Netflix video through the 4870 directly (without the unplug/plug workaround) when I'm in Windows via Boot Camp (Win7) or Fusion (XP). On the Mac side, I'm having the same problem both in 10.6.2 and 10.5.7.