i am using 1.7.7 perfectly, checked the checking for updates no issues. all i did was drop the new 1.7.7 in the utorrent directory and load it, showed 1.7.7 and it's working fine and downloading LINUX and some other freeware at good speed. never had issues with 1.7.6 either. Windows Vista Ultimate 32bit here but a friend with 64bit didnt have issues either. thanks for the quick updates.