Notes about the demos:

Depending on your operating system, graphics card
and driver, some of the programs may raise an
error message or will not work properly.

As the demos were written to be standalone
programs, no error recovery was implemented.
The programs typically just quit. 
This is, why you may get a confirmation window
from time to time, asking you, if you want to
quit the presentation.

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In most cases, you may proceed with other demos,
but be warned, that strange effects may occur.







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S
St
Str
Stra
Stran
Strang
Strange
