Go to the Disk Utility and run Repair Disk Permissions.
It's worth a try
P
well, am using a power mac dual 2.7 g5 with 1.5gb of ram,runnig tiger osx 10.4.8 and its working weird, cuz i install the adobe cs 2 and the install was allright, but when i click on the icon to start the program plays the little arrow below the icon, and suddenly stops and do nothing , and its happening with the flash 8 profesional also, so waht could i do to fix this i really need it....

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