Blogger glitch

Durned Blogger is messing up my efforts to post, I tried to post a post on another blog and got told there was an error, then tried again and it posted more than once. I have the extra deleted, and it seems to be okay now, but sheeesh! This ain't the first time it has done this to me. I don't know what the glitch is, but it happens about once every 20 or 25 posts for me, sometimes post after post has it happening.