Tried to go up to the version 4.1.6853 of VE Pro today (still using regular VIs, not VI Pro). Two computers: Master is Mac Pro 8-core running OS 10.6.2, slave is a Mac quad-core running 10.6.3. Been having no connectivity problems among the VE Pro instances when I was using version 4.0.6150. However, when I upgraded, I found that old sequences hung when they tried to connect to large instances of VE Pro. When I uninstalled the later version and restored the earlier, connectivity returned. I'm using DP 7.2 in DAE mode with a PT HD Accel 3 system. Which is an increasingly bad idea, I know. But nevertheless...
Thanks,
Peter