Did you try the suggestions here?http://www.vectorlinux.com/forum2/index.php?topic=4827.msg32066#msg32066
Please do not double post. Also, provide a little more information, like what version of Vector Linux you are using. Very often it is necessary with some back and forth communication before an issue is solved, so stick with it. Let's start with this: In a terminal (command line window) type this:cat /etc/vec
and hit the Tab key. It should auto-complete your entry to:cat /etc/vector-version
Now hit enter and post the result below.