How can you start up Ion3?
I installed Ion by apt-get.
I have the
exec ion in my .xinitrc.
>> Unable to redirect root window events for screen 0. >> Refusing to start due to encountered errors.
I suspect you started another window manager before this one. What's in your .xinitrc before the line exec ion3? Is there a exec startkde, metacity or similar?
If this isn't enough info to go on, I need to know what window manager you're migrating from.