Normal Text turning bold when playing video

[kdani]

I've added some text lines over a white matte.

The text looks sharp and correct in design view.

when I hit the play button the text become bold and not shark: 

vs. 

while playing.

any idea what is wrong ?  (premier pro 14.9.0 build 52)

[Richard M Knight]

Make sure your playback resolution is set to 'full'

[kdani]

it helped a little bit - and it looks ok when it is rendered on the final output, but it still happens even if it it's set to 1. 

[Michael Grenadier]

and see how it looks if you render it...  could also be a corrupt font.  

[kdani]

in the output file it is OK. only in the preview - tried other fonts. all have the same effect.