I just downloaded the example. Space toggles between black / sparkles - the bug is still present.
# fglrxinfo display: :0.0 screen:0 OpenGL vendor string: ATI Technologies Inc. OpenGL renderer string: *DrvBringUp* Generic OpenGL version string: 2.0.5582 (8.21.7)
# lspci 01:00.0 VGA compatible controller: ATI Technologies Inc RV350 [Mobility Radeon 9600 M10]