Currently Being ModeratedAug 7, 2012 3:54 PM (in response to Mstack)
Well we always recommend plugging into other hubs like an Apple monitor but having a direct connection for keyboard/mouse otherwise (mouse into kb is fine).
I would blame the hub for not being compatible and supported, very often you find new OS issues with devices. And every new OS has had clamoring about external USB and FW drives. Try a PCIe USB card if you need more ports, or consider CallDigit USB3 (costs though).
Currently Being ModeratedAug 7, 2012 5:32 PM (in response to Mstack)
You need to plug the keyboard into a USB port on the chassis to have the Startup "snag keys" be recognized as well.
The USB ports on the keyboard only has enough power for ONE low power mouse. Do not plug anything else into those ports, not even a Flash Drive.
The mouse down/up scrolling default is the iPhone direction. You can change it with a checkbox in System Preferences > MouseMac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
Currently Being ModeratedNov 7, 2013 12:30 PM (in response to Mstack)
I the same issue on Mavricks 10.9 on a Macbook Pro 3.1. When I try to wake it up from sleep the light will be solid but nothing on the screen. I have to do a hard reboot to get it to turn on.