Go to Options-Color and choose the 6X6X6 palette. Now go back to the Windows menu and choose PreviewWindow. Click on each frame in the Frames Window and watch the animation sequence in the Preview Window. Next, go to the Animation menu and choose Start. Watch your animation in action.
Chances are it moves from frame to frame a bit too fast.
A graphic changing colors or lighting up too quickly can be distracting to your viewers. Maybe even give them a headache or bother their eyes. Slow it a little by using the Default Interframe Delay in the Options menu. You can change the speed at which each frame is changed individually by selecting the desired frame and choosing Default Interframe Delay, or you can use Edit-SelectAll to change all of them at once. If you want two or three frames to be the same speed and the rest of the frames to be another speed select multiple frames by holding down the Shift key.