I agree, the Eternal Requery is REALLY annoying. One thing that sometimes helps is clicking on kill download and then reselecting the file from the results list. It sometimes starts downloading. If this doesn't work, then try doing another search for the file and see if a new host comes up - if the file is already partially downloaded, it needs to be exactly the same (same size and version number) for it to resume. To check this you can use the Bitzi Web lookup option and compare the hash numbers (but this is tedious to do).