'F' Is for File Sharing Colleges throughout the region, faced with cease-and-desist letters and straining bandwidth resources, have stepped up their efforts to curtail students' illegal downloads of copyrighted music.&lt;br&gt;\&lt;FONT face="verdana,MS Sans Serif,arial,helvetica" size="-2"\ color="#666666"&gt;&lt;B&gt;-washingtonpost.com&lt;/B&gt;&lt;/FONT&gt;