Sansa Clip User Manual and General Information

hi there i am a newby and would i  love u to answer a problem i have have looked for the answer on the community cant find the answer i am sure that it is simple but i cant work  it out.

i have deleted the music on my sansa clip 8mgs, on media player still says the songs are on there. answer my problem please need it for my hols in 4 weeks. i have windows xp.  thanks again emerald