Hey there. I have an older 2006 iMac (6.1, OS X 10.7.5.) I had the original white Mac Keyboard that came with it, but it sometimes wouldn't be discovered by the iMac, and not work. I'd have to reach behind and reconnect it to get it to work. I deemed the keyboard as "bad", got rid of it, and bought a Verbatim Speaker Keyboard (made for Mac.) Now, occasionally, this keyboard will stop working, and I again have to disconnect/reconnect to get it working again! What's going on here? I do have the keyboard plugged into USB port #1 on a USB hub... On a Windows machine, I'd deem it a driver problem, but I'm new to Mac-world, and thought the whole driver thing wasn't supposed to be an issue...??? Further information - I had updated from 10.6.8 to 10.7.5, and after doing so, the right-mouse button stopped working. I did some research, and found that 2 hid files needed to be present for the right mouse button to work properly. Is the keyboard stopping along the same lines as my right mouse button issue? Would appreciate any advice/help.... Thanks!