Hello Dave and others!

Oh, do not even mention SP2. It was nothing but trouble. In fact installing it on my ThinkPad was a total disaster.
It clashed with almost all the software that I have to use on daily bases.
Even my screen-reader application (ZoomText 8) was blocked by that monster.
I had to disable Norton Antivirus (also updated on regular bases) and kill about a dozen USB drivers in order to be able to restart and perform "system restore".

Until Ai2 update ZoomText to be compatible with SP2 (and vice-versa, because that's what it usually takes to make things work in Windows) I will have to avoid SP2.

But since in your case you're only having a USB driver problem all you will probably have to do is update the driver. The rest should work fine.
Good luck!

-ED-