Blogger is not my friend tonight...

Is anyone else struggling with Blogger? The last few days, every time I start a post/upload photos/etc., a little yellow box pops up (constantly) and says that I have logged out from a different location. I haven't. I can't save anything, I can't get through a whole post, etc. Frustrating!!!
Google searches yielded suggestions to clear cookies and clear the cache, both of which I did, with no luck.
Any suggestions? Advice? Please????