[Xymon] Case sensitive DISK file systems

I have machines with 2 separate file systems: /opt/IBM and /opt/ibm. Xymon is getting confused when it updates the disk rrd graphs. It appears to be thinking upper case and lower case IBM are the same thing. It creates both rrd files, but tries to update the same rrd file twice, once for each file system. Is something that can be done to make Xymon case sensitive when it goes to update the disk rrds?

David