USB2 question

[ajf]

I've been running latest controller software 3.8.12 for a month now on an older Dell computer running XP. So far no issues. I decided to upgrade the controller computer to a newer model HP, 2gig of ram, dual processor, 6 - USB2 ports running Windows 7, bare bones installation. The controller software loaded OK and everything seemed to be functioning, but slower than the older computer.
I started checking things and noticed that the ShopBot controller was showing up as connected to a USB1 connection instead of a USB2. Tried the USB cable on all the ports and got the same result. Yet if I plugged a known USB2 device into the same ports it registered properly as a USB2 connection.
I then plugged a USB2 hub into one of the ports and connected the Shopbot to one of its ports and the Shopbot registered as USB2 device. I confirmed this with the diagnostics tool and the packet transfer rates were lower. My understanding with version 3.8.12 is you should no longer need to use a USB hub when connecting to the controller, so I'm puzzled what is going on here. Does anyone have any incites into this issue.

[srwtlc]

This does sound odd and 3.8 does seem to be better off without the hub. Is this a fresh install of Win7 on this PC? Did you install any motherboard or OEM specific drivers? There will often be some for the USB controllers. Look at drivers for you specific PC on Hp's site. You may be running on some default Microsoft ones. Just a thought.

[ajf]

It is a clean install of Windows 7 on this computer, with the HP driver files. What puzzles me the most is why several USB2 compliant devices that I tried in the computer properly register as USB2 but the Shopbot USB does not unless connected through a USB hub.