Error on category pages

OK, I posted this in another thread, but thought it's better in it's own as the other was OT form t he original topic.

I have just upgraded my site to 1.2.9 and it's all good now except one thing.

On any category page, I get the following at the top of the screen:

Notice: Undefined index: description in /home/mysite/public_html/catalog/controller/product/category.php on line 52

Warning: Cannot modify header information - headers already sent by (output started at /home/mysite/public_html/catalog/controller/product/category.php:52) in /home/mysite/public_html/system/library/response.php on line 65

I seem to recall seeing something like this before on the forum, but can't find it now.

Does anyone have any idea why it's doing this???

Cheers
Gavin.

OK, solved it by doing a complete reinstall. Including deleting the database and recreating it.

seems OK now....