I have exactly the same problem with floppy mounting with Ubuntu 5.10 and Kubuntu 6.06 on two different computers.
However, I suspect that the problem is not caused by KDE, but by access permissions.
I have found a work-around fix for Ubuntu 5.10 by creating a 'root' user account (with all privileges).
When I log in as 'root', I can mount and read / write files on the floppy.
When I log in as 'first user' (created during installation), I get the reported mount problems.
I have exactly the same problem with floppy mounting with Ubuntu 5.10 and Kubuntu 6.06 on two different computers.
However, I suspect that the problem is not caused by KDE, but by access permissions.
I have found a work-around fix for Ubuntu 5.10 by creating a 'root' user account (with all privileges).
When I log in as 'root', I can mount and read / write files on the floppy.
When I log in as 'first user' (created during installation), I get the reported mount problems.
I have not tried this fix with Kubuntu yet.
Why has such a basic problem not been sorted?