Guys, Here is a new issue on the latest Arch with nvidia and any gtk app like Firefox or Thunderbird. When using Firefox or Thunderbird, X cpu usage skyrockets to 85+%, the Tbird cpu will be 20+%. Here is a top screenshot showing usage: http://www.3111skyline.com/dl/arch/bugs/tbird-cpu.jpg Merely scrolling the new messages window or a web page causes X cpu usage to jump from a resting usage of 1-5% to over 30%. This is viewing all messages as plain text only. When tbird checks imap servers or sends messages both X and tbird CPU use goes way way up. Anybody else seeing something similar? gtk 1.2.10-11 gtk2 2.24.11-2 gtk3 3.4.4-1 linux 3.4.7-1 nvidia 302.17-4 firefox 14.0.1-1 thunderbird 14.0-1 xorg-server 1.12.3-1 xorg-server-common 1.12.3-1 It's like there is some very bad race condition created in X when using gtk apps with the nvidia driver? -- David C. Rankin, J.D.,P.E.