Like others here, WP super cache has always worked fine for me, but I've suddenly started getting the white screen of death everywhere (although not 100% of the time - it's weirdly intermittent, varying between 50% and 90% of the time)
It hits the back-end most of all, particularly when I'm updating the plugin settings - VERY frustrating.
I'm not running any unusual plugins. I've deactivated almost all of them to try and solve this issue.
This issue started after migrating the site (which I understand has been an issue in the past). The plugin recognised a problem and said it was fixing itself. But when the problems started I uninstalled it completely: htaccess, advanced-cache.php files, cache folders, plugin folder and all. And then reinstalled... works fine for 5 min and then the the white screen starts appearing again.
Anyway, any debugging suggestions welcome