Hi - have used this feed for a long time - have been very satisfied. But just recently, added a new feed to the list and it doesn't show up at all. There is not a problem with the feed - if I only use this feed by itself and no others with it it displays just fine. Have tried everything suggested here - cleared the cache, took off the datetime etc.

Any help?

Have you tried testing the feed? There might be issues on your feed. I think feedage site has a way to see if your feed is validated.

I checked my PHP modules to make certain they were enabled--cURL, iconv, PCRE, Zlib.  They were already set correctly and the feed still didn't load.  I discovered that I had a couple of spaces (spacebar presses) beyond the last RSS feed URL.  When I deleted the extra spaces, it immediately worked great. 

I had a test site that was displaying the feed perfectly, but I couldn't get my live site to load the feed.  Everything else was identical?  I noticed that the test site underlined (spell checked) several parts of the URL in red, but not in the live site.  That was the only difference I could find.  After I eliminated the extra spaces, the spell check worked and the feed loaded immediately! :D