Have you gone through the basic launch troubleshooting available in Adobe knowledgebase.
Try that to begin with.
If nothing else helps, please respond with more information like your machine/OS configuration, whether this is first launch after installation, etc...
can you give me the link where i can read about troubleshooting
the link u given to me did not work for me
by way you asked about my system configration
i am having window xp service pack 2, 512mb ram, 80 gb hard disk
i uninstall the flash cs3 and then installed it works fine for 2 days but after 2 days i stop working
any help for me.