Mine does the same thing. Doesn't bother me really...I just say "continue without scanning" and then I can access the internal storage and the MicroSD card. No biggie. I don't really consider it to be an "issue" unless you couldn't see the device after ignoring the scanning message.
I agree - only problem is that I'm unable to use the X3 with my Windows 7 Home machine. Makes it somewhat inconvenient.