When I open Itch and then try to connect my Vestax VCI-300 Itch controller, I get an error message that the device was drawing to much power and has been disconnected. I have already done/tried the following:

-updated my Itch software
-updated computer software (it is actually 10.7.3 Lion, it wasn't an offered choice above)
-tried starting Itch up while switching the controller to the "Thru On" setting
-used both USB ports (same story for both..)
-cleaning the ports on my Itch controller and my computer
-using external power source (DC 9v power adaptor)
-tried multiple computers (all Mac)
-tried multiple USB cables

After one successful gig, I put my controller in it's padded case and left. About a week later I took it out for another gig (didn't mishandle it or anything, it sat in one spot for a week..) and the message popped up..(Had to run to my buddies house and grab his mixer- I was very late, very angry.)