Edit post weird behavior

Hi, something just started to happened after I was twicking custom templates (although I doubt it’s related).

Symptom :

I write a post, publish.
Everything ok.

I go to Manage > Posts to edit the post; edit it and save.
Everything ok (edited post is correctly published and displayed).

In Manage > Posts, the post displays correctly in the list (with edited title), I click on edit again for this same post and the Write Post form now brings the older version, prior to editing, although the newer version is still displayed in the front (and its newer title displays correctly in Manage)…

Any idea?

I’m using 2.0 with Falbum, Flickr Post Bar, UTW and Fuzzy Recent plugins (SCP Flex theme). I did try with plugins deactivated with the same results.

Puzzled.
TIA.