Hi Guys, With some help from a friend,I had a go at cleaning my Sony vpl12 LCD projector yesterday. Few times the air can blew out both air and liquid while spraying the panel. I managed to get rid of the dust blobs and the pj is working ok but my wife is having a go saying that the picture quality is not as sharp as it was before I took it down for cleaning,I think she may be right. Now I am paranoid that I may have got some propellant inside the lcd panel while cleaning it. Will this cause a long time damage to the pj?