I do have the option "share files downloaded from the P2P Network" not checked. Always did. This is the one that changes back to being checked sometimes!
At this time LimeWire seems to be running okay ( except maybe sometimes when my CPU jumps to 100% ). I have set the setting in "Options/Advanced/Transfer" to allow "0" uploads; and have set the upload speed to "Zero". This seems to be working as when I'm downloading and I check what is happening in the uploads; it will show the uploads but with Zero transfer speed. But why it even shows any uploads happening is beyond me!
Has LimeWire ver 4 P2P capabilities? Is it basically the same as ver 5? If so; I just may revert to ver 4!