problem with aup files in Audacity..

Hello
I recorded something with Audacity and saved it as aup file.
Now I opened the file in Audacity and this is what I get:

Attachment 18157
I do not know why this is happan..
When I play it, so it sounds just like it looks in the picture.

Please help me.
I do not understand why this should happen.

Attached Thumbnails