The Mini DisplayPort is found on all latest Apple notebooks and desktops.
Apple has just released a firmware update for the Mini DisplayPort to VGA interface.
This firmware update addresses intermittent flickering and compatibility issues such as no video on some external displays.
If you browse the official Apple discussions or other Mac related forums, you will find out that many people had trouble connecting their hardware to external monitors, and especially Samsung LCDs/TVs.
Let’s hope that this update is fixing all these problems.