Upload problem with MIME type

Hello! I've got a problem uploading files (PDF, TXT, others...). I'm building an intranet for my compagny (I work on a local network). I've already write some upload functions in PHP for others sites with success, but this time I have a strange thing : I receive the file, I can copy it, I have the size, the name, but not the MIME type! The variable _type is empty... And I can see the type directly at the beginning of the copied file! The problem seems to come from the form : the size of the received file is different than the original file... Does anybody know this problem? Can you help me? Thank's a lot! Jibs. ___________________________________________________________ Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en français ! Yahoo! Mail : http://fr.mail.yahoo.com