Menu issues. Image resizing issues.

Hi there. so far so good and chugging along with developing the site I'm using this theme for. Few issues. The drop down menu is HUGE! The width is at least twice what I need. I've gone through the CSS file and can't figure it out. Where can I change the drop down menu width? Also, some menu sections requires users to be logged in to the site. Those menu items turn up with an uggly [L] immediately after the menu item (i.e. Press[L] ) How do I remove that? The original site, on wordpress, does not have this. On the front page, the menu has no transparent background. It only appears once starting to scroll down and the header image and logo shrinks. Would be great to maintain the transparent background even before the scrolling. As for image resizing: Background images do not resize when viewing the site on mobile devices. This is extremely annoying. Testing the site on a mobile device or the viewe as if on mobile device, on laptop. None of them shrink background images down. Only images in header or in posts/pages shrink. Would be fantastic to have this resize to fit on mobile devizes as the site looks like crap on them because of this. Other than that, all is good right now. As before, not posting a link to where the site can be viewed as the band has yet to see it. Cheers and thanks in advance.