Unable to post

[Green Baron]

I am using Vbulletin 3.0.3 and recently we have intermittent problem when user try to post. certain sequence of characters are generating this error :

The resource cannot be displayed

The resource you are looking for cannot be opened by your browser.

we found out the word 'Python' followed by space and 'n;I' followed by 'D' generate the error. Does anyone know what is the cause ?

[Zachery]

Sounds like a server side issue, Never seen anything like that