Error copying to mounted WebDAV volume

Question

I am getting the following error message when I try to drag and drop a file to a WebDAV volume mounted in the Finder:
"You cannot copy some of these items to the destination because their names are too long or contain invalid characters for the destination. Do you want to skip copying these items and continue copying the other items?"
I know that the files I am copying do not have either longer names or names with characters other than the files that are already in the WebDAV folder.
Any ideas? I've googled this error and found other references to it, but no solutions or explanations.
Thanks,

Answer 1

sorry for the dumb question, but, how exactly do i initiate a copy in terminal?
There are no dumb questions...
Launch the Terminal application, which is in your Utilities folder. Once started, you'll see a window with a prompt in it -- this is called a shell prompt. The "shell" (also called the "command line") is what takes your input (in the form of commands) and gives you output. In OS X, many GUI interfaces also have command line equivalents, so most everything you can do in the GUI can also be done from the command line (though less easily, for most people).
Anyway, by default the Terminal will put you in your home folder. At the terminal prompt, you could type "ls" to see a listing of all your files and folders in your home folder. You can use the "mount" command to see all the filesystems that your system has mounted. We need this information because we need to know the path to your WebDAV remote folder. For example, I mounted my .Mac iDisk (which is DAV), and when I type "mount" I see this entry in the output:
http://idisk.mac.com/glsmith/ on /Volumes/glsmith (webdav, nodev, noexec, nosuid, mounted by gls)
This tells me that the folder path /Volumes/glsmith is the root of the WebDAV filesystem. This is important because we need to know where we want to copy data.
Once we know where to copy, we use the "cp" command to do it. Something like this:
cp myfile.txt /Volumes/glsmith/Public
will copy a file named "myfile.txt" to the folder Public on my WebDAV server. If you don't have any files in your home folder that you want to copy, use the "cd" command to move around within Terminal. For example, to go into my Documents folder, I'd do:
cd Documents
If you're so inclined, you can read more about the command line here:
http://developer.apple.com/documentation/MacOSX/Conceptual/OSXTechnology_Overview/CommandLine/chapter_950_section1.html