Comment 70 for bug 771875

I am very sorry if I ask a moronic question, but this blue overlay issue is driving me nuts.
I run Ubuntu 12.04 LTS .

Has this bug been solved ?
If so, why am I still encountering the issue ?
If I have to apply a patch or something, could someone clearly indicate me how I should to this or point me to some instructions about this ?

Thanks a lot in advance