[Typo3] No thumbnails are created

[Dmitrii Dimandt]

> Seems like your ImageMagick doesn't work.
> Go to the install tool and do the image processing tests there.
> 

True, I don't have ImageMagick installed. Is generation of thumbnails
reserved exclusively to IM? If so, it loks like a very odd decision to
me.

If so, it means that there is no way I could create nice-looking sites
without IM? Very odd indeed.

BTW. I just checked the install tool. Even though it says "Thumbnails
are generated by IM/partly GD", it wouldn't let me set the
[GFX][thumbnails] option. How partly?