constant crashing

I have an issue with a scene I have where the first time I render a scene it is all fine and if I try to render another scene without shutting down and restarting VIZ 2005- Vray 1.09.03, it gives me an error.

This is the message -

Vray exception

"UNHANDLED EXCEPTION: Sending RenderBegin() to scene
LAst marker is at P:\Vlado\SVN_10903n\VRay\RenderLight.cpp, line 135: VrenderLight::freeData(), node name is Sun01

Please send the file C:\VrayLog.txt and, if possible, (a part of) your scene to vray@chaosw.com

Press Cancel to abort rendering or Ok to continue"

If I press Ok to continue I get like tie dye effect, which forces me to shut down and restart my session and re-open the model.

Please advise - memory issue??

are you using an ies sun?

Do you have any 3dsmax skylight in your scene (either on its own or as a part of a Daylight system)? If yes, disable it.

Best regards,
Vlado