Multiple Fake Network Drives

I have a few users now that they get network drives mapped for every letter of the alphabet. If you restart the PC, they dissapear, but if you open My Computer, you watch them start to remap themselves. They map to a location that is mapped by a script, but so far only 2 people have had this problem after a year, so the script works fine. You can’t delete the drives in explorer or as a net use command. Any other ideas?