Can't enable mount point, no more loop devices?

[bswitzer]

New Ubuntu user. P III 733 / 512Mb / 6Gb.

Have created a mount point, /data, to one of my windows machines. In System Settings / Disk & Filesystems. All seemed well when I created it, but when I go back to it now, several reboots later, they are no longer enabled. I get an error:

Unable to enable /data - KDE Control Module

An error occurred while enabling /data.
The system reported:
Details
Return code from mount was 2.
"system error (out of memory, cannot fork, no more loop devices)"

Ctrl-Esc reveals 183Mb free, and I see loop0-63 in /dev.

How do I go about determining what it really wants here?

TIA

[cantab]

Re: Can't enable mount point, no more loop devices?

In a terminal, type

cat /etc/fstab

cat /etc/mtab

cat /proc/mounts

and post the results of each here.