A little saliva and some Kleenex usually does the job.
i've found that saliva works best too. haha
I wouldn't dare use a micro-fibre cloth. Eventually it's going to contain lots of dust particles within the fibres and it will act as a sandpaper. Basically you'll be wetsanding it. I know of a few people who have "sanded" their displays/TVs and regreted it.
Joshua.
I have been using them for years and never had a problem. I have never heard anyone having that problem with them until your post.