This list has been reported to NI as problems existing in LV 7.0. I am hoping to put all of these in a single place available to the info-labview community.
Platforms: Mac OS X, Windows
The problem is most noticeable when you exceed your limits. Set the proportional gain to a large value, and use a setpoint with a large error. The limits will be exceeded and the integral constant is adjusted to stay within the limits. Now, if you set the setpoint equal to the error, the output should be zero, but it isn't. It is still equal to whatever was used to compensate for the limit. This value is stored in a shift register in the integral routine. I ended up modifying it to always use zero, except to correct for exceeded limits.
NI response: "I spoke the the Research & Development Engineer that will
be dealing with your request for a change to the PID toolkit vi's. He
was aware that for some applications this behavior was not expected nor
wanted, and feels that he can change the behavior for your. I do not
have a time estimate at this time, but the corrective action request is
Platforms: WinNT, Win98, Win2K, Mac
No example posted since PID toolkit is not public
Info from Bien Entendu <BienEntendu@mac.com>
it just happens when you uncheck "show menubar" there is a conflict with the STF Fax software. so you have three options: