I have installed KDE 4.3 RC3 a few days back. Today I thought to try out emerald, but using “emerald --replace” does not do anything. When I hit return key after typing this in the konsole, nothing happens.
Any inputs? Anyone else facing this problem?>:(
ok… I enabled desktop effects from CCSM and it worked.
BTW, is there a way to get mac style windows by using KWIN. Please let me know if possible… 
First install aurorae from the kde 4 community repo’s
then go here Eyecandy for your KDE-Desktop - KDE-Look.org and download glowglass-cupertino aurorae which will give you mac look windows deco