Thanks for replying. This is a copy of what I got while trying to download the beta 6.3.4:
ERROR POO7: Danger. Quantum stream detected. Exiting
I am running a picoscope 3223, connected via a B&B electronics USB isolator, antivirus software AVG 9.0, and have my 3GHz Pentium plugged into a wireless router together with my Mac G4, and then to the cable internet connection. The wireless feature of the router is turned off because we have everything hardwired.
If there is any other information that would be helpful, let me know.