[Xastir] Black online maps

[Tom Hayward]

> Tom, I recall a cause of this was that the gifs in ~/.xastir/map_cache
> actually contained HTML errors from a failed fetch.  Have you checked
> that the gif files are actually gif files, using the file command or an
> image viewer?

Yes, the cached gifs look good in an image viewer. Map download and
caching seems to be working fine, but Xastir displays them black.

Tom KD7LXL