You can try previewing the view when you are editing it. Give in a test UID as argument in the preview. This will tell you if the view works correctly.

Another thing to try is to try adding a View pane display in the view, instead of a block, and add that to your panel page.

Ok I tested test UID as argument in the preview of view block and it works fine.

But the block is still not showing.

I don't want to do the panel view just to get it working, this is a learning experience and I whant to know what I'm doing wrong.

OK, When I have pics in my photogallery and send an argument of 1, the view shows my pics (Works).
When I send an argument of 2 It display "This user has no picture gallery uploaded." (Works).
When I delete my photogallery and send an argument of 1 then It display "This user has no picture gallery uploaded.", shouldn't it display a link "Add your pictures here!"?

The code I'm using in my "Empty text" is:

<?php global $user;
$idn1=$user->uid; //my userid
$id2= arg(1); //my contentprofileid
$mynode= content_profile_load(profile, $idn1);
$id1= $mynode->nid;
//check if the user is looking at his own gallery:
if($id1==$id2){
//If so: display add link
echo 'Add your pictures here!';
}
else
//if not:
{
echo "This user has no picture gallery uploaded.";
}
?>