Dear, I have been using gtk2.0 from May this year till now, with 2.6.18, 2.6.20, 2.6.21, 2.6.22, 2.6.23 kernels. All have a problem that sometime gtk applications can not response to key input at all. Mouse is OK, and programs run OK. I have to closed the program or even restart my machine to get it work again. Does anyone else has this problem? Any idea? Thanks.