When making small tweaks and edits to my pages Dreamweaver (MX) will tell me "Access to [path:\file] was denied" when I try to save it. It only does it when I've gone over to my browser and hit F5 to refresh the page to see the change. If I go back and edit the file and try to save it again quickly, then I get this error. Does Apache put some kind of lock on a file when it reads it? It does seem to be something like five seconds or so after I load the page in my browser, then Dreamweaver lets me save it, though sometimes it does seem to get stuck and not let me save for more than five seconds.

Is this Apache doing this? Or is it something Dreamweaver is doing?