how to enable all sounds for all applicatins??

[ramaswamyps]

i have enabled system notification sounds. they work ok
radio audiostreams gxine set and it works for drm
stream tuner installed. but xmms says sound card output not set properly or some application blocking.
what to set if i want all sounds in thhe computer to come up in all applications at the same time.
like windows mediaplayer realplayer and system sounds do
help needed :) :) :)