http://www.macnn.com/articles/11/08/24/imac.update.deals.with.hanging.issues/
Apple issues updates for iMac graphics, Boot Camp
updated 05:10 pm EDT, Wed August 24, 2011
iMac update deals with hanging issues
Apple has released a pair of new software updates. The first of these, iMac Graphic FW Update 3.0, upgrades the graphics firmware on iMacs, solving a glitch that could cause iMacs to hang "under certain conditions," according to Apple. The download is just 482KB, but notably intended only for Macs running OS X Lion.
For Windows users Apple has meanwhile posted Boot Camp Software Update 3.3. It follows just a day after a v3.2 update exclusive to 64-bit versions of Windows, and is said to address "critical bug fixes and hardware support." The new file is 199.75MB and requires either a 32- or 64-bit version of Windows 7 along with Boot Camp 3.2.
Forum Regular
Joined: May 1999
Not for iMac 3.4 i7..
Installer will not run on iMac 3.4 i7...