Requery means 'to search again' - If LimeWire cannot find an available upload slot (so that you can download) on a client, it will look for other clients. In effect, the message means that no serving clients are available. The only way to fix this is to persaude everyone who downloads to also make files available for upload. At the moment, many (most?) people do not share files so the demand on files that are shared is very high.

The 5 minute countdown on requeries is spurious - people complained when it accurately reflected the time between LimeWire's automatic searches. In order to reduce network overhead/traffic - LimeWire only does an automatic re-search every 45 minutes (for all files, not each file).

If you perform a manual search for the file, LimeWire will include any new clients with the file in the list for that file - which will re-start the download if the new client has free upload slots.

Mark