I had endless problems running a UA-1D into windozes xp usb 2.0 I dont think this was a problem with the UA-1D however ,when my hard drive died I installed Mandrake 10.0 and Audacity and I have never had one single problem since,I have transfered endless dats to hd and even did some live taping in clubs when I had a lil protection for the laptop.
On a side note not to hijack this tread ,I'm running ubuntu on my old old desktop and I swear its a like new computer, I'm probably going to buy a new desktop, prices on refurbs are looking pretty sweet to me right now
Phillip