WP 2.1: suddenly getting blank screen when submitting comments and elsewhere

Hey folks,

I’m struggling with a weird problem here – suddenly and out of the blue, comments stopped working. Try to submit a comment, and you get a blank screen instead and the comment is not saved. On the backend, when I try to go to “plugins” I get a blank screen also. What’s going on? I’ve searched the forums and google and have seen similar issues, but nothing that fixed my problem.

Cheers,

Tobias