I can also confirm this bug and reproduce it.
I'm using Ati mobility X700 with the fglrx driver (Gutsy stock driver) and XGL. Compiz is also Gutsy stock version.
I could also work around the bug by disabling the PNG plugin in the Compiz setting manager.
No output is generated in the console when compiz.real is launched from the command line.
I can also confirm this bug and reproduce it.
I'm using Ati mobility X700 with the fglrx driver (Gutsy stock driver) and XGL. Compiz is also Gutsy stock version.
I could also work around the bug by disabling the PNG plugin in the Compiz setting manager.
No output is generated in the console when compiz.real is launched from the command line.