"CommSec's Matt Comyn says the problem was a small, one-off incident. "
Matt Comyn's job should be on the line.
I've just tried the PT1 forced upgrade on a second PC and EXACTLY THE SAME ERROR MESSAGE OCCURS as the one I got when I first did the upgrade last Saturday.
The truth is Commsec's two trading platforma are a complete shambles and have been bug ridden (especially PT2) for as long as I can remember.
