W7 /Vista
video drivers fail for many users (no upgrade avail).
It is just simpler to say NO W7 / Vista compatibility than to try and enumerate which work (Just think of the effort to log
)
You are free to try
, just don't cry if it does fail
(This fail does not damage the Library, so just uninstall, and install the old version.
I keep the last 2 regular releases handy, just in case)
OTOH Calibre 2 slammed into XP limitations for the majority, so The installer just rejects XP installations