Is there a way to make it so that each user can only post in a topic once?

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This is something I would like to do with an idea I have for my own forum.

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By my current settings, if a user is not logged in, they don't see posted pictures, but rather, links to those pictures. How can I change this to allow non-logged in users to see the pictures rather than...

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Sorry to take your time, the problem was the server and the problem should be fixed.

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No, I am not using eAccelerator. What do you think is causing the problem?

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My website is down and I am being given the following message:

Fatal error: Invalid opcode 153/1/8. in /home/citydisc/public_html/core/vb/api/language.php on line 51


Here...

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That worked, I just don't want to confuse my forumers. Is there no way to fix it in the control panel?

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OK

www.City-Discussion.com

You're going to have to log in to see what I'm talking about.

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It says "Login or Sign up" when you are not logged in, on my site it stays that way even after you login, rather than showing your profile and it stays that way until you leave the homepage...

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On the login/sign up symbol on the upper right hand of the page, after I log in, it stays as the login/sign up symbol and doesn't show my profile. If I go to a page off the home page I can see the profile...

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The forum section on my homepage is not extending fully to the right, This looks fine on most web browsers but looks horrible on an IPad where the forum only extends halfway across the screen. In order...

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Is there a way to make it so you can attach multiple articles in a post in VB5?

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Thank you very much for the help.

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I have set up Google Adsense on my own without VBulletin integration but my banners are very large and are disrupting the dimensions on my website, especially the mobile version. Will setting up Adsense...

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Alright, I was able to fix it using my Forum Manager but I would've appreciated a much faster response time guys.

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Alright, I was able to fix it using my forum manager but I must say, I would've appreciated a much faster response time guys.

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I edited the page manager and lost some of my forums. I am recreating these forums and am getting the following message.
Error: An unexpected error was returned: 'Duplicate route data: forum/city\-talk/city\-architecture/(?P[0-9]+)(?P...

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I edited the page manager and lost some of my forums. I am recreating these forums and am getting the following message.
Error: An unexpected error was returned: 'Duplicate route data: forum/city\-talk/city\-architecture/(?P[0-9]+)(?P...

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I am using Mozilla Firefox and I am using vBulletin5.0.1. How do I get 5.0.4?

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No, it didn't but the very left button on my advanced editor read "remove format", that was what I clicked, I don't happen to see any button saying "source mode"

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The box is not expanding for me when I copy & paste on my website, however, on this site it does. So there must be something I can do to change that.