I have logged issues about DotNetNuke with Turkish Locale. They were related to uppercase-lowercase problems. Luckly most of them sorted.
Now i noticed a new problem with DotNetNuke Search. Unfortunately it does not work sometimes if you apply Human Friendly URLs via adding UrlFormat="HumanFriendly" to web.config.
Stefan Cullmann posted a fix to DotNetNuke Support tracker. However you need to rebuild DotNetNuke solution to implement this fix to your website.
I will post instructions here soon.
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