Unrelieved black popups and message boxes
Everyone:
I asked this before under a different heading, and no one answered.
I get a large volume of e-mail, and very often I interact with a site
that brings up a lot of message boxes, "suggestion boxes" (for
auto-filling from a few keystroke clues), and bringing up apps after
they were minimized to the system tray or the task bar. Now why is it
that, after maybe two hours of operation, those popups come up and are
totally black? The only way to solve the problem, that I have found, is
to shut down. And even then, I can't even see what I'm doing, but have
to guess where the icons are for executing a controlled shutdown. (I can
always bring up a command-line login screen, log in as root, and then
shut down. But that doesn't seem to solve the problem for the next session.)
And when I log back on, everything's fine--until it starts happening
again, after several more window draws.
What could be causing this? Where do I even look for error logs and the
like?
I never had this problem in any other version of Fedora. I'm having it
now, and it's driving me nuts.
For the record, I used the "upgrading from F17 to F18 using yum" method.
I even used the elaborate script that walks you through rpmnew and
rpmsave reconciliation. And I've kept up with every system update since
then. Actually, the problem began about three kernel updates back.
Temlakos