I am not familiar with code 41. Where do you see that?
Code 41 came from a constant error message I kept getting when trying to get the CD-Rom drive to operate.
Windows successfully loaded the device driver for this hardware but cannot find the hardware device. (Code 41)
It's all sorted out now though,I went to the link that Greg posted below and then did as it said and lo and behold up popped E:\ in My Computer.
I don't think that it actually had anything to do with altering the drive letters on my HDD (as in C and D drives).
Thanks for your help guys, now I can have music again when sitting here!.