The "Weird" Address isnt showing contents. just a 404 error if i remember right.
Yes, that's what it should be doing. You can think of error pages such as 404 and 403 as a special kind of rewrite. The user's browser address bar shows the page they thought they were going to, while their screen shows the error that results from your server and/or their browser trying to take them there.
Try it this way: Where is your htaccess located? Ordinarily it should be in the same directory as your top-level index.html (the one users get taken to if they just enter your domain name) and other all-purpose files like robots.txt.
If it will help i can give you the .htaccess files from my folders.
Uh-oh, that looks like a plural to me. If you have more than one htaccess, where is each of them located? Ignore the ones that say nothing except "Options -Indexes" or "Options +Indexes"; those should have no effect on anything else.
All of this is assuming you are talking only about .htaccess. If you've got something further up like a config file, different rules kick in.