I've lost my vertical scroll bar since I've installed this script (returns when I switch off the script). I love the look & feel of the script, but the missing scrollbar is very annoying.

I'd love to use the 'read as marked' filter, but it's not available in my Filter Assistant. I successfully installed the script and the Filter Assistant is present in my gMail, but the option 'read as marked' is not there. No errors in my error console. Using Firefox on a Mac, could that be the problem?