Clarification for you  and Zundarks right i should have checked the Wikipedia bugs page first   This is a bug in the code that makes wikipedia work  it just means that there is a line of code that may have an error as small as an extra space Its analogous in a VERY simplified way to trying to make something bold in HTML and forgetting to put the  at the end so youd see something like this  words in bold  Instead of this  words in bold   Its not like a virus that is code somebody deliberately wrote in order to infect your computer and damage files so it wont go around JHK