Not being able to copy/paste

[fremantle]

EVERY SINGLE TIME I COPY A FILE AND IN SOME OTHER DIRECTORY CLICK "PASTE", NAUTILUS INSTANTLY CRASHES AND GOES BACK TO DESKTOP. EVEN IN ROOT. AND IF I COPY A FILE TO DEXTOP, ALL DESKTOP ICONS DISAPPEAR UNTIL NXT REBOOT. I REALLY NEED HELP..
im using karmic