I recently purchased a used 17" ViewSonic flat panel monitor. I've been swamped with different ideas on how best to keep it clean, everything from alcohol-free premoistened wipes to using a soft, damp cloth. There are some smudges on the monitor, possibly fingerprints, since a friend had used it for three months previously. I tried the alcohol-free premoistened wipes but they do next to nothing to remove smudges. The monitor seems to be made of glass. Any suggestions on what I should use to clean the monitor, especially with the smudges? Thank you very much.