Ok, after not being able to find a way to make 472 open any more, I've finally given up. I am back on 461, but not without much to-do. Simply uninstalling 472 (which leaves the downloads intact) and reinstalling into the same directory didnt cut it. I had to copy all downloads and the resumeinfo.txt into a different folder, uninstall 472 and manually remove any remaining traces, both folders and registry entries. I could then install 461 fresh, and copy the downloads & resumeinfo.txt back into the Xolox directory. I also had to remove the 90%+ completed files that had been "zeroed" out as they were causing problems. Any attempt to sort by file size caused InvalidInteger errors, and I think they may have had something to do with EList errors that were cropping up. What is becoming more and more obvious to me is that with 461, performance deteriorates over time with usage. The longer you use it, the more frequent the errors are. 472 was just in the dumps right out of the box.