This little $79 box seems to solve a lot of issues if you have an available thunderbolt port:
http://www.amazon.com/Kanex-KT…=8-1&keywords=Kanex+KTU20
The virus is much happier when it gets its own dedicated usb controller.
(I cant claim it will completely solve all your ti/ti2 problems (arp sync issue, and occasional crackle ahem) but this one adapter helps tremendously.
Hope this helps