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[RootKit]

version : 1.1.rc2

theme : xtEnhanced

when i  clicked to "mark as  read" , this error has occurred.. what can i do ? pls help me .

[xenovanis]

Looks like you are using an outdated theme. If you want to keep using this theme, you'll need to update it to work with 1.1 RC2:

http://www.simplemachines.org/community/index.php?topic=50411.0
http://www.simplemachines.org/community/index.php?topic=64744.0

[RootKit]

thanks for your interest, but I used 1.0.6 before 1.1.rc2. I couldnt resolved the problem with the way you suggested.I have the same problem with karma 

[xenovanis]

So, what happens if you use SMF default theme?

[RootKit]

when i use default theme , no problem

[xenovanis]

It's a themerelated problem. This theme won't work with 1.1 RC2. I suggest contacting the theme author or updating it yourself.

[RootKit]

I can not update with my own. If I could, I would publish it, so everyone would get benefit from this. I require help from anyone, maybe "author of theme" or anybody who could update it.