Upgrading to 10.4 would be a better move for that machine but if you only have 10.3 that will do.
Adding more RAM, 512MB would be a start and then download the latest Flash player for that machine.
A few more details about your current OS and machine specs would help
P
I'm in the process up upgrading my G4. I've most recently upgraded to OS X10.2 but am still having problems like running Flash. Should I upgrade to 10.3 or higher? Would that help it run better?
Any help is appreciated!!

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