Comment 29 for bug 940603

For me this started with 12.04. I can reproduce the small upper-left-corner boxes as described in #14. I also have the #7 boxes randomly and can not associate them with something specific. I use chromium a lot. I have set some compiz custom settings (via ccsm) but have not yet tried to isolate it. Logout/login fixes it, killall compiz fixes it as well.