I had a noob moment (actually mostly a stupid moment)
I used root explorer to move gmail.apk from zip to system apps folder but never thought I actually need to install it.
I then installed it using astro and everything seems to be working.
Is it okay to do it that way? Can you just install it like normal apk from sdcard?
2.2.1 seems nice. The biggest difference is a large reply arrow on top. When you press it reply, reply all, forward scroll in. This is a bit nicer than before.
Thanks fir the help!
The permissions should be owner (rw), group (r), world (r). x just means executable. Rebooting is needed unless there is a way to reload the .apk's without rebooting which I'm sure is possible if I knew the Android system well enough. The file permissions have three sets of permissions, the owner of the file need read and write access while the group and world (other users) only need read access.