try deleting them.
You will find them in your Home folder, Library, Preferences, com.apple.finder.plist
Move that file onto the desktop and restart
Suddenly command-W has topped working on my system (OS X 10.6.4, iMac 2.66 GHz Intel Core 2 Duo). Instead of closing the current window or browser tab, it takes me to the Finder. I have tried rebooting, but it did not fix it.
How can I fix this?
Thanks very much in advance to all for any info.