@rollobsam

I'm using Eset Smart Security. But I am pretty sure it has nothing to do with it. As I said, v30 or lower works for me and I get no error. Something must have changed for 30>31 that does this for me.

I would be more willing to blame some extension/s for that than AV. I think I will try a pure install without any settings carrying over and no extensions and see how that goes. Hope is pretty minimal though.

I am having the same problem, running W 8.1, I previously used the Beta branch but it started happening there and was not fixable so I switched to stable... till the last (31) update, now the Out of memory! erorr is back again. I think I will have to go back to v30 and stop the autoupdate, it did not happen on that one. Also, uninstalled Opera yesterday, cleaned everything from everywhere (program files, appdata, registry), installed Opera again, copied over login data, bookmarks etc. Still happening. So nope... either v30 or another browser is the solution for me. Shame, since I've been using Opera while it still had built-in ads (either v6 or 7, can't remember) and the way it is now is just sad.