There have been quite a few calls to our technical support team regarding Snow Leopard upgrades since the new operating system was released. It seems a common issue is Safari function, and there are a few network-type issues that can be resolved by resetting DNS addresses in Network Preferences. There was one odd call that stuck out for me relating to use of an external mouse with a MacBook Pro.
Under earlier versions of Mac OS X, all keyboard and mouse settings were grouped into the Keyboard and Mouse preference pane within System Preferences. After the upgrade, our customer called to say that his preference settings before the upgrade included the “ignore trackpad input when a mouse is connected” option. He found that after the upgrade, the trackpad was accepting input while he typed, even though he’d selected that the input be ignored before the upgrade. Frantically, he went into System Preferences and tried to verify the setting, but was unable to find it.
He called us us and explained the situation, and I quickly asked him to check the Keyboard and Mouse preference pane, not knowing that the option had moved. Ultimately, I did realize that the option had moved to the Universal Access pane after typing the word “trackpad” into the System Preferences search box.