Added scroll bar to the preview window and preview word display. https://gitorious.org/~sayan/wordgroupz/sayan-wordgroupz/commit/e38b026e31039613e0ed13068199845c1b85bc5b -- Sayan Chowdhury Second year student Computer Science and Engineering Dept. Dr.B.C.Roy Engineering College,Durgapur http://fosswithme.wordpress.com