-
Mavericks update might cause headaches
https://www.macissues.com/2014/05/21/10-9-3-causing-headaches-for-mac-pro-users/
“Some Mac Pro users have noticed that after updating their systems to OS X 10.9.3, their systems are showing significant graphical artifacts that can impact their work in video editing software packages, especially when exporting video files.
For affected systems, in some cases pink and green lines may be embedded in exported video files, and in other cases the exporting process may stall out and not complete properly. Either way, this issue appears to be a compatibility problem with the drivers for the AMD video chipset in the new Mac Pro, and various popular video editing software packages.
This issue is being looked into by Apple engineers, so a fix may be supplied soon in a supplemental update to OS X 10.9.3. Meanwhile, there are several things you can do to work around this problem.”