Trancer,I have many incomplete files,some 5% ''full'' some30% some75%,and some zero,they do not ''connect'' and resume downloading,ie.go straight to ''Awaiting sources'' after timed countdown,many reasons for this,re-install of LWire,crashes with older Lwire,hangs etc..I am advised that the incomplete files are now probably corrupt,ie. LWire wont rcognise them,so wont download them,I then tried to use all the advice given on forums to ''Force resume'' files, reinstall preference folder, etc...nothing worked,so I then tried ''Search'' on incompletes folder,ie. right clicking on file and clicking ''Search'' only to find rubbish search results,and none of the original titles, so have resigned myself to noting all incomplete titles down, deleting old files, and starting searches from scratch, as you say agonising but part of life's rich tapestry !! hope this helps,Force resume is going to your incomplete folder and right clicking ''resume'' this can be done with a few files at once,reinstalling preference folder you need to check all forum links by using the ''Search'' button on top of forum pages,you will probably find most of your answers there.
N2:( :D