Настроение сейчас - Freaked out

I was uploading more MCK pictures and I ended up getting a "page not found" message. So I figured no big deal and refresh. When I did, my layout was completely different nothing else was touched. My icons and tags remained the same. I freaked out and went to my profile and it changed back to the layout that I have. I thought someone hacked into my journal. >_________< Did anyone else exprience this or is it just me?