depends on your cache situation
I changed tha graphic, but the size is similar so your computer doesn't know its changed, and keep th aold on ein chacheyou can try hitting reload, or you can try dumping your hcache, or you can try right clicking on it, going to 'view image'and then relaoding that.
I had it saved in a layered format, it was't as hard as making a new button, but not as easy and just retyping text in a window.
-Justin Kelly