I'm having an issue with unit-cards but only outside the game...
When I make a new card it looks like its a wet painting that someone tried to clean

this is how it looks after saving as .tga;


this how it looks saved directly as .jpg (pretty much how it is in game);



anyway all I can think of is prehaps you didnt save it as compressed 32bit .tga ...

(I'm using some units-card for the normal/slave/merc/horde versions of that unit and never had an issue with it so I dont think its a limitation in the game ..)


G