Error with classifieds search

[DJC]

Trying to search for a sub £250 snotter across all categories within 25 miles of my postcode. Theoretically possible using the advanced search function.

However, I get the following message:


ERROR

The requested URL could not be retrieved

While trying to retrieve the URL: http://www.pistonheads.com:80/sales/searchResults....

The following error was encountered:

Invalid URL
Some aspect of the requested URL is incorrect. Possible problems:

Missing or incorrect access protocol (should be `http://'' or similar)
Missing hostname
Illegal double-escape in the URL-Path
Illegal character in hostname; underscores are not allowed
Your cache administrator is root.

[Stuart]

The trick is NOT to select any makes/models. If you don't touch that box at all, it'll search across all categories anyway, and give you results.

At least it just did for me...