Mount 'Em Up
To alleviate the problem, I did ps -e | grep pcmanfm. Once I had the process number I terminated it with extreme prejudice.
# kill -9 process-number
This kills the process thats causing the lock up.
Sure, I like light and fast, but I prefer things to work. When they don't...
I guess given time LXDE will come good. Till then...
I un-installed LXDE and re-installed Gnome. I dont much like Gnome its fat, slow, bloated and I use few of its features. But it is stable (mostly). Grudgingly its back to Gnome.
Now I find autofs, the USB automount feature has stopped working. So here's a temporary solution.
Fire up an XTerm and do:
dmesg | grep Attached
Displays attached devices. Should be somehting like:
[475716.401459] sd 8:0:0:0: [sdc] Attached SCSI removable disk
[sdc]identifies the device. As root, create a mount point for your USB memory stick:
Mount the usb memstick:
mount -t vfat /dev/sdc1 /mnt/usb
Option -t is type file system we are attaching.
Device is now mounted. If you cd to /mnt/usb you will find your memstick contents.
Note its sdc1 not sdc.