Dash rattle - how to stop please

Ok, my dash has bgun rattling, i've located an offending wire which i have stuck down and stopped an annoying rattle. Turns out this was masking another rattle. It appears the guage screen (clear plastic thing) seems to creak and rattle.

Applying a little pressue to the front of it stops it, i have thought of jamming some paper between it at the surrounding cowl. Just wondered if anyone else has had this and what they did?

Cheers