Running Chrome 14.0.835.186 m. Make edit, save edit, and then it decides it doesn't like me and doesn't show up.
Without more information, I can only guess what you're trying to do, but...
With only 10 reputation, you can only suggest edits to other people's posts. They have to be approved by two other people before they show up on the site for everyone.
On your own posts, you can edit them already, but you have to have 1500 reputation to be able to create new tags if a tag you want doesn't already exist in the system.