it sometimes shows 100% and it hasn't finished the last bite but it should take it less than 10 sec to finish of. if they just go to need more sources or any of this wait a couple of days and it should resume... let me ask you when this happened was your computer working higher than 90%, go to tools, options, downloads and make shure you can download more than one file at the same time and what was the speed? if the speed is 0kb it's ganna take a while it might do that because the hosts are using there bandwith or are gone. for the part about your system working really hard, sometimes this might slow it down even more, even though the other was going quite well mayb your system was concentrating on that one only. finally for the last question, i think it might be because LW is set to download only that many files which stops your other download.

if none of this works it might be a glitch.