I've just installed Texnikcenter on an ASUS notebook with Windows XP.
When opening the tools-->options menu, I get no "Ok" button. Still, it IS possible to save the options by pressing "Enter" when there is no other UI-control in focus. However, it's rather strange that there is no "Ok" button. In the attached screenshot you can see what I mean. This Windows version is (for some reason) in Hebrew, so the bottom right button reads "cancel".
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