problems with winmx

[murasame]

after installing windows 2000, i have this new problem.
say I downloading a file from 15 different people, as winmx allowes multi-source downloading, but after i downloaded the file to a certain percentage, everyone starts disconnecting at the same time. when I click on every 15 of them to retry, about 7 of them will disconnect again, and the remaining 8 will also disconnect, but with the message "file mismatch"
it is quite annoying as many of my files are disconnected by the time i reach 80-odd percent.
anyone knows what the problem is? any help would be appreciated, thanks.