Apple this week issued a pair of firmware updates, resolving a flickering graphics issue in late 2008 15-inch MacBook Pro models and addressing a hanging graphics issue on iMacs.
From AppleInsider:
From AppleInsider:
The MacBook Pro firmware update is recommended for 15-inch, late 2008 models. The fix resolves a graphics issue that may cause the internal display to flicker. The file is a 1.79MB download and requires OS X 10.5.8, OS X 10.6.8 or OS X 10.7.3.Apple issues iMac Graphic, MacBook Pro EFI firmware updates
Apple has released a slew of EFI updates in recent weeks. Last month, the company issued several updates for 2010 Mac models that added support for Lion Recovery over an Internet Connection.
