Yarlan Zey wrote:However, since logging on today I notice that the center function no longer works. You can choose an object as usual, but then pressing "C" or using the "Center" dialog button no longer does anything. So let's say I choose Proxima Centauri and then hit "G" to go there. I see what looks like a rear window view from a spacecraft as Sol dims and recedes into the distance. At the end it appears in Cassiopeia just as it should, but then there's no way to move the view at all. Selecting another object and centering on it does nothing, and neither does holding the left trackpad button and dragging.
I was trying to use the program on a tablet last night without a keyboard attached, so I don't know if that had anything to do with it.
It sounds like your Celestia is "tracking" the Sun, i.e. keeping it at the center of the screen. If this is the case, you should see "Track Sol" at the bottom right of the screen. This can be toggled by pressing "T".
Also, you say you're using a tablet - are you using the desktop version of Celestia described in this thread, or the mobile version? If the latter, you should post in the appropriate thread for iOS or Android.