duplicate content issue

When I login to google's webmaster tools, I now see that the majority of pages on my forum have "duplicate meta descriptions"

here's an example:
I have been trying to teach myself SQL and ASP. I can read from a database if the information is man

‎/7953-post1.html‎‎
/databases/2112-sql-problem-insert.html‎

any ideas what this "7953-post1.html" is?

thanks

That 7953-post1.html would be the showpost more then likely.