ports/177967: redrawing text bolts and occasionally blinks from underneath other iframes

[Darren]

>Number:         177967
>Category:       ports
>Synopsis:       redrawing text bolts and occasionally blinks from underneath other iframes
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Apr 18 21:50:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Darren
>Release:        9.1-STABLE r249461M
>Organization:
>Environment:
% uname -a
FreeBSD .ed.shawcable.net 9.1-STABLE FreeBSD 9.1-STABLE #4 r249461M: Sun Apr 14 01:39:27 MDT 2013     darren at .ed.shawcable.net:/usr/obj/usr/src/sys/GENERIC  amd64
% 
% cat /etc/make.conf
CC=clang
CXX=clang++
CPP=clang-cpp
WITHOUT_NOUVEAU=true
# added by use.perl 2013-04-14 13:10:59
PERL_VERSION=5.14.2
% 

>Description:
Having an issue with blinking background text(when covered by div). Unsure of what could be causing the problem. I have no error output from executing in console. To try and fix the issue I compiled the whole system from scratch hoping it might bug fix itself.  Also text occasionally bolds like it is being redrawn poorly.  

Here is a video of the issue: http://www.youtube.com/watch?v=I4CFjyv39VQ
>How-To-Repeat:
I use the facebook game kingdoms of camelot with scriptish installed and the addon http://code.google.com/p/koc-power-bot/

However it is possible that it would reproduce with any sort of div that covers other parts of the page.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: