usernames, thread titles & contents meesed up

[K!nG]

Hey Everyone,

I upgraded my forum to latest version of vb4 about a month ago. Since then i am having this issue where some usernames are showing up as " ????????" Same thing is happening with thread titles and contents of the threads are also showing up as " ???????????????????????????" It's not with every user or thread, but this is the case with a lot of users n threads.

I am attaching 3 screenshots, which will show username as ????? , threads tiltle as ??????? and thread contents as ???????? also.

User name:


Thread Title:


Thread Contents:


If anyone can help me and tell me why this happened and how can i fix it ???


Thanks in advance.