VBA GX problems with selecting menu items and moving characters

1. When I try to select a menu item in menus other than the main one (i.e. settings, the context menu that comes up when you press Home in a game) the item one past the one which was supposed to be selected turns purple, the hand on the screen starts flickering left and right quickly, and the wiimote constantly vibrates. If A is pressed, the button which was being hovered over (NOT the apparently selected one) is the one chosen.
2. When playing a game, only the A, B, and Home buttons respond, and my character moves to the top left of the screen and wants to keep walking. Tried in Mother 3 and in Pokemon LeafGreen.

These both started happening after my update to 2.1.1, I think, although I might not have used the app since 2.1.0.


I thought that other people would have these problems too if it was something fixable and not just my wii behaving badly, so I checked here instead of filing a bug report. Thanks in advance for any suggestions!