Google Sitemap says 600 Duplicate tag Title

Hello,
google webmaster tools tells me that I have more than 600 Duplicate title tags, how can I fix this?
Example:

Code:

HardwareGame - The Next Generation - Iphone 4G /forum/content/11-iphone-4g.html

/forum/content/11-iphone-4g.html?nocache=1


2x sulla barra /forum/windows-vista/2215-x-sulla-barra-2.html

/forum/windows-vista/2215-x-sulla-barra-2.html?2215-x-sulla-barra/page2=

/forum/windows-vista/2215-x-sulla-barra.html


3Thread ufficiale : Uncharted 2 /forum/sony-station/4230-thread-ufficiale-uncharted-2-a-10.html

/forum/sony-station/4230-thread-ufficiale-uncharted-2-a-7.html

This will always happen. I'm sure your site has more than one thread called "iphone 4" and as such, the title is duplicated every time. There is no way around it with dynamic content on an active fourm.

Thanks and sorry for the stupid question

Hi,
the same question i have for The Meta description duplicate and Meta description short ??

The same response above applies.

Users will post threads with the same titles, and thus, you have duplicates. There is no avoiding this on a big forum.

Thx Brian