I tried starting XBMC and an information window appeared saying:
XBMC needs hardware accelerated OpenGL rendering.
Install an appropriate graphics driver.
this suggests I uninstalled the driver because it WAS working. how did that happen? what
should I install? I thought perhaps 'apt-get install opengl' but the
repository includes only opengl-4.2-html-doc and opengl-4.2-man-doc
which seems to be the documentation.
An inquiring mind wants to know.