I can't say specifically about the SD4 but i've got a couple of USB synth boxes that are fine. They all came with specific drivers.The driver install may be the issue. Although Win2K provides class compliant drivers for many devices the SD4 and Win2K may be too far removed chronologically to be supported. Get in touch with www.ketronusa.com and see if there's a Win2K driver available.


John
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15.6" Monitor
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