DirectColor support for GIDS
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Until recently, GIPSY's oldest image display program GIDS could 
only run on 8 bit PseudoColor displays. 
Modern graphics interfaces and drivers that support this mode 
are hard to find.
To be able to run GIDS on modern 24 bit displays we changed the 
program so that it now also supports 24 bit DirectColor colour mode.

The disadvantage of DirectColor is the effect of colour flashing. 
But we think the advantages are more important:
-You don't need a separate 8 bit X server anymore to run GIDS.
-The new version is as fast as the old PseudoColor version.
-There are a number of GIPSY tasks that interact with GIDS. Some of them
 have not yet been rewritten to cooperate with other display software.
 With this version of GIDS the old functionality becomes available again.