Yep! Updating just the FreePBX Framework broke things and found the same error with mstyle_autogen_1338405657.css does not exist.
Copied the only style sheet in the directory to the missing file name and “fixed” it, but I wonder if there are changes to that missing style sheet and I am worried about what we find later that is not quite right.
I know that Tony or Peter will advise.
Thanks for the heads up!
My motto, never be an early adopter or upgrader!
John