Weirdly only for non logged in users, I have since yesterday the white screen of death.. a few hours and testing around, I could determine W3 total cache causing this.
I have to admint I ran a coupleofupdates yesterday, and can't remeber which ones. but after deleting allmy plugins, and adding them back one by one, it was W3 total Cache that caused this.
I do actually like the performance improvements it brought, and don't want to lok for alternatives, but haven't found a way to fix it yet. Seems am not the only one having issues wiht it lately.
Still, great work, until recently.