I'm having the same problem. But, at home (5 years old desktop PC) KT disconnects when I transfer more than one files at a time... and sometimes didn't even connect.
I've debugged connection and many other things... no hint. I've been in touch also with second-level support, no solution.
The strangest thing is that, instead, connecting KT to my little old EeePC 900/Linux works perfectly, even on batteries! Obviously, I don't have the Kodo Desktop application...
Also office PC works almost perfectly: sometimes, seldom, disconnects but it happens rarely.
Even second-level support told me about the USB driver things... I tried with XP, Vista and now 7, still same old disconnection problem.
I've even tried with a USB battery in the middle, no luck. I'll try with a USB hub soon these weekend (I hope).
Fortunately I have WiFi at home and can connect in office, otherwise it is a real problem!
