Dropped TStyleBook on the form and loaded custom style from Embarcadero (not my own)
Set Form.StyleBook to that TStyleBook component
Drop button on the form and it looks styled
Move button around or change any property and button disappears
Drop TGroupBox and move it around, click off on the form and border around GroupBox is gone.
When I switch between Code and then back to Design tab – components show back up styled as they should ???
Really odd. Any ideas? Here is the video: http://screencast.com/t/tniPIANDNK