We have our forum based on the YAF engine opened for indexing by Google bot. In Google for Webmaster Tools we see a series of the "Pages with duplicate meta descriptions" messages for topic pages like yaf_topics1_bla-bla-bla.aspx, yaf_topics2_blu-blu-blu.aspx, etc.

The HTML description tags are generated automatically for post pages (yaf_postst*.aspx) enough good, but is there any chance we can improve that for the topic pages?

We are using YAF 1.9.6.1.