Just come across a problem with the Auto Complete in WeBuilder 7.4 (7.4.0.70)
If editing towards the bottom of the WeBuilder window, the Auto Complete pop-up list will go off the bottom of the screen, and the options down the list are impossible to see.
See the attached screen shot to see what I mean...

In the screen shot anything below "onmousedown" is impossible to see.
Cheers
Mike