I am running XP under Parallels 4.0 in Snow Leopard. A few days ago, I could no longer send data via http, although downloading still works fine. Both Internet connections in OSX, and even Windows 7 in Parallels work fine for upload and download of data. No XP updates have been applied. When I run a speed test, my download speed is the same in all three os, but upload times out in XP. Is anyone aware of any XP/Parallels 4.0 issues? Thanks!