yeah i wish I'd left it alone now. My local camera shop said they could clean it for about 35quid if I wanted but I'm just glad the images won't be affected.

Thanks for the replies back guys.

hi,
just got pentax ME super. Had some black specks on viewing screen so i used cotton wool bud to gently wipe off.The black foam was the culprit and has now come off completely and has possibly left sticky smudges on the screen, but i'm also not sure if the screen has got scratched in the process. When i tilt the mirror uptowards where the foam was,a sticky mark is left on it. Does the foam need to be replaced? Tried to wipe off the marks on the viewing screen with a couple of different soft cloths and a tiny tiny bit of lens cleaner but didn't work. Don't think a shot of air will work either. Looks really bad through the viewfinder and I'm not sure if this will show up on my images.Is it in need of a repair/replacement,or can it easily be cleaned? If so can I do it myself and what do I need? Or is it best to have done by a professional? I'd be very grateful for any advice given.