Heh ! one of my juniors (and room-mate) in college was once utterly and totally distraught in his sleep one night. On further questioning he revealed that he dreamt a murder happening outside of a block of an infinite while loop. He was stuck inside the while loop and powerless to do anything about it. He apparently was the instruction pointer.

I do have dreams about code, but no scrolling text, usually nailing details of a function down.