problem with shadows flickering in animation-vray 1.09 free

[d0e]

Hello, I have some problems with animation...When I render an animation, of course with 100% quality,there is a problem...Some places are noisy, and in animation it looks horrible. Which kind of parameters I must fix? I think that this is a problem with irradiance map but I can't render with -3,0 I render -3,-1 , one frame rendered for 20 min...I need the animation to be something around 2 min (25 Fps).....I have Athlon Sempron 2.5 +, 1000 Mb ram , and the GeForce 128Mb...Need a clean animation without the shadow noise....Which parameters I must fix, but for a minimal amount of rendering time??? Thanks a lot...
P.S.It is simple scene, GI light,one directional light and little reflection on glass, no other lights (but lots of faces), All comments needed...If you have some idea how to make lower the render time, that'd be cool too

[percydaman]

What kind of light are you using specifically? is it just skylight? post the anim so we can take a look.

[d0e]

i'm using a directional light with overshoot activated and skylight at value 1.0. what do i do with the qmc sampler values,i need speed and quality, i can't aford to render a frame 20 minutes. how do i send u the animation?

[percydaman]

if you have webspace just use the forum to post the anim. that way everyone can see it.