Hi!

Just guessing, but don't you have to open up a Roland or EXR7 "program"? Do you have an icon on your desktop?

No, you do not install a program, there is just an USB driver on the CD. If everything works fine you should be able to see the stuff that is stored on the EXR-7s in the Windows Explorer and audio software should be able to communicate with it like it was connected using MIDI.

In all of this have you ever shutdown and restarted the computer; that could be a necessity.

I restarted my computer several times but it did not help. However, I just found something interesting on the Roland website:

Clean All for Windows XP/2000 (2005.7)
This tool is for uninstallation of the USB MIDI/Audio driver for Roland/EDIROL/BOSS products. By using this tool, you may be able to solve the problem: "Cannot use the driver though the driver is installed" http://www.roland.com/products/en/_support/dld.cfm?ln=en&dsp=0&iCncd=813

So I will try the Clean All tool and let you know if it solved the problem.

Regards, Tanja