I am not sure when it started but feel like after pushing down ZCM 11
agent, first it caused all the CD-rom quit working and then plugging in
usb drive caused blue screen on all the xp with sp3. After applying the
recent patch of zcm, cd-rom issue is fixed. But usb drive issue still
exists. Does anyone out there experience the same issue as I do?

It seems zcm11 caused a lot of pain.