I'm having this problem too. I'm using NVIDIA restricted drivers and subpixel smooting, but no twinview.
I'm also having the same behaviour in GVIM. Maybe it's related with this bug: https://bugs.launchpad.net/ubuntu/+source/vim/+bug/572863
I'm having this problem too. I'm using NVIDIA restricted drivers and subpixel smooting, but no twinview.
I'm also having the same behaviour in GVIM. Maybe it's related with this bug: https:/ /bugs.launchpad .net/ubuntu/ +source/ vim/+bug/ 572863