Too many open files - what the hell?

I got this error. I'm trying to copy a temporary file (was uploaded) to a permenate file location. I don't have any other files being uploaded at the same time. I'm not even using a require or include function. It's an admin script, so no more then one person would even use it at one time. The /cars dir has chmod 777 - so its not a permission problem. Help. Here's code: // $vehicle_pic is the filename variable from the http upload. $new = rand(1000,100000); $file = "$new" . ".jpg"; copy($vehicle_pic, "../cars/$file"); --------> this is the line it gives as the problem line Here's error: Unable to create '../cars/1097.jpg': Too many open files in <b>/home/downing/www/admin/show_admin.php