in 2005, i break  a fall semester and went to nepal  .. . at that time i did had a visa  till 2007 so while in  return .. dont have to apply visa ...as i had already so .. . .  about i-20 .. .  the college will send u  the new i-20 back  at ur home address .. ..   cause they have some deadlines for issuing i-20 ...so..they will send u back one .. . u have to telll them before u leave ... .about ur case .. ..   when u come back u just need to show ur new  i-20 at the  immigration .. but do keep the  old i-20 tooo . . ..   .let me know  if u want more info .. .  the  people  who havent done that will just scare you. .. sayin ...false info .. . ..