In my game sprites sometimes moved anisochronous... Why it''s happend? How to create smooth sprite movement?

Is it the user controlled sprite ? maybe you''ve used linked the movement to the typematic refresh thingy ?

You should move it preferably by not more than 3 pixels/time to create smooth movements. What API are you using for your sprites?

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Daniel Netz, Sentinel Design
"I'm not stupid, I'm from Sweden" - Unknown