My trashcan is invisible now. I was playing with the bottom panel, added hiding buttons, then removed them, maybe I tried some other options and I suddenly noticed the trashcan was gone. Only it wasn't really gone, it was just invisible. I could click on the corner where it lied and it would open. I just couldn't see it.

I deleted the whole panel, created a new one but to no avail. No matter what I do, if I drop the trashcan applet to the newly created panel it becomes invisible (but it's there since I can click where I dropped it and it opens the trash folder). Any other applet is perfectly visible, but not the trashcan.

If I put the trashcan applet in the top panel it is visible indeed, so this is something about the bottom panel only (adding more and more panels doesn't help).

I guess some configuration file is corrupted, but which one?

I'll appreciate any help.