Uploading sitemap.xml problem. Over the last week I've tried to upload my sitemap.xml to google and it always has a triangle with an exclamation mark. There is no explanation and I've looked over my sitemap.xml file and can't see anything wrong with it. Any ideas?

Ok, I figured out how to see the errors. Silly me was expecting that you could click on the symbol and have it open up. I decided to click on what I thought was a link to my sitemap.xml file, but it turns out that is the error list.

The error it was complaining about was my date format. I have: 2011-1-9. I think I need to change it to 2011-01-09 instead. Will try it tonight