People are talking about low notes, like C4 or D4 or E4 and I have experienced that too, all the time.
Not the C5 and up.
Going back to the issue of graphic cards, I think this is what happens:
1. CW have always used the best computers, with the best graphic cards, whether they are on board or not, and very good audio converters. This is typical corporate behavior.
2. I have asked before, that why don't CW just come out and tell us which computers they use, so that we can all buy and use the same computers. Then if we have a bug, then it is really a bug. That is what Apple is all about. For instance for X4, they should tell us which computers they develop X4 on, so for people who are not very technically inclined. meaning trouble shoot their computers on their own, they are sure to get one that works well with Sonar.
3. I understand the diversity of Windows based computer, and it is a very good thing, since we don't have to buy the very expensive computers to have Sonar working, like what Apple has been doing with Logic.
4. hence everytime someone claims that there is a bug, half of the people on this forum can't reproduce it, and sometimes even ridicule the OP, and the other half swears up and down, that it is really a bug.
My thoughts.
dan