Had a couple of RSS feeds while on 10.6 but now that on 10.7 only had Apple one remaining. Tried many cycles of adding/deleting and looking in Mail envelopes etc all to no avail. Had friends test url which operated on their Macs Ok but could not get this one RSS to download and link with a new item that was recent and available. Finally ran the 10.7.2 Combo updater over my 10.7.2 and the RSS now works. So if all else fails to help .....