no thumbnails in my new system: ubuntu 12.04.1 64-bit

Do you get thumbnails for images?

Yes, I have thumbnails for images, videos, html, exe files, etc.
The only thumbnails I have missing since the system change are txt files as well as all odt, ods, odp files...

Which file browser are you using?

Nautilus 3.4.2

Hi,

please try to move the folder .thumbnails ..

from a terminal (Ctrl+Alt+t) give this command

mv .thumbnails/ .thumbnails-old/ <== do not forget the dots front of word thumbnails , cuz is(are) hidden folder(s).

Then reboot (or logout - login ) and see if fixed.

Thanks

Thanks, but no change after doing this and rebooting.

Hi ,
you said "Yes, I have thumbnails for images, videos, html, exe files, etc.
The only thumbnails I have missing since the system change are txt files as well as all odt, ods, odp files..."

I think you have problem with icons and not thumbnails.

Try to change icon theme. Install a tool like myunity (are in Official repos) and try to change the icon theme.

Thanks

Thanks, I've already considered this possibility, but the only difference is in txt files (some icon themes display a thumbnail, some display a txt icon), odt files however are always displayed with an icon instead of thumbnail no matter which icon theme I use.

Ooops, this question has been previously answered at http://askubuntu.com/questions/131067/ooo-thumbnailer-does-not-work-in-12-04 by a guy named Sadi ;-)))