A few reports: - RC0 works fine on Intel HD 4000, only bug noticed is that inactive color window isn't adjustable, there's no color indeed, even if transparency and blur are working. - On Geforce 9600M GT, after some minutes of good behaviour since installation, screen becomes black (but DWM doesn't restart, I think, beacuse when DWM restarts, screen completely turns off for a moment) an even restarting PC doesn't change anything (also pushing Power button doesn't shut down the machine) ... maybe this happens beacuse I'm using latest Desktop drivers on a notebook card, I'll check...