Problem with .htaccess on localhost

[eluser]Bramme[/eluser]
Hey all,

I'm experiencing some trouble with my .htaccess file on my localhost, running Ubuntu Hardy Heron. I've created my .htaccess file:

Code:

Options -Indexes
Options +FollowSymLinks

DirectoryIndex index.php
<IfModule mod_rewrite.c>
    RewriteEngine on
    
    RewriteCond $1 !^(index\.php|_assets)

    RewriteCond %{REQUEST_FILENAME} !index.php
    RewriteRule (.*)\.php$ index.php/$1
    
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^(.*)$ index.php/$1 [QSA,L]
    
</IfModule>
<IfModule !mod_rewrite.c>
    ErrorDocument 404 index.php
</IfModule>

I go to localhost, I see the standard welcome, I go to localhost/index.php?/welcome/ all is still fine. I go to localhost/welcome/ and I see a complete white page, with only two words in it: "index.php"

Does anybody know what could be causing this?