Permalinks messed up

Can someone please help me out I have never has this problem before I am using a new hosting provider altushost and I dont know if this is on their end or what.

On the front page of my site I add links to certain words and instead of taking me to the actual link in a new window it takes me to a 404 page on my site where I notice it says e-cigsnow.com/externallink.com

Default url for my front page is e-cigsnow.com

I have made a new page and linked words successfully its only on the main front page where it fails I checked my htaccess file and it says

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

The blog is running on the root of the domain and no sub domains.
I have tried deleting htaccess resetting permalinks to default and the output is the same it re-creates that same code.

I am dumbfounded and need to try and fix this asap any help would be greatly appreciated.
Thanks.

P.S I have tried disabling all the plugins deleting them etc and it had no effect on the front page.

I also tried all the old fixes I googled up for older versions of wp and nothing seems to fix it as far as I can tell.