Same problem here, infact I think it has something to do with 'File corrupt' as well. First time I got this error ever, and Ive used alot of Limewire over the past few years.

All in all, 4.9.9 Pro beta seems to be a step down over the previous other versions, due to this error.

Also, regarding File curroption detection, is there any way to block all these bad ip ranges, without manually inputing. As in is there any way of using peer guardian (or other) integrated into limewire?