For few months, i have abandoned Compiz. My last trial on Compiz when it was included in Slackware-Current (before 12.0 comes up). After that, i had never tried to run compiz again, since it's quite buggy and the titlebar was gone for most cases.
Today, i tried to load the compiz script again (i wrapped it in a script to make it easier for me to load the compiz) because i have quite some spare time today, and hey... the titlebar is not gone anymore. Oh yeah... btw, i'm using Compiz 0.70 from Slackware-Current on my laptop.
You can see the cube effect is working