When downloading a file a box opens up and says "Limewire was unable to write a necessary file because you do not have the necessary permissions". I assume that I have changed something on my computer because I used to be able to download with no problem several months ago. (I deleted Limewire and had not used it again until recently). It does download the file but I don't know if there are problems with it or not. Any ideas how I can get the "necessary permissions"?

Thanks.