wrong authentication [1]

xmanager 2 beta5 works normal.
Recently I downloaded beta7 and the final version. There are always one problem. When I login in and start a X application, I got

X11 connection rejected because of wrong authentication.
X connection to localhost:11.0 broken (explicit kill or server shutdown).

I found in home directory there some files, whose names are like .history.xxx. I delete it and relogin. And the X application start.

Thanks a lot.

It is nothing of the xmanager. I have solve it.

Thanks.