first of all I'd like to introduce myself:
I'm Martijn Grootendorst currently working at Mediamonks in Holland.
I've been working with maya for around ten years and recently got the chance to learn houdini for work so that's awesome…..really, I already love houdini.. (where do I sign up for the fanclub?)

anyways I'm hoping you guys can help me with this problem:
I've simulated a straightforward pyro setup with a collision with an object,
written this out on the import_pyrofields to a bgeo sequence
and then reimported this cache in a geometry/file node
in the viewport I get these strange “colorspots” see attachment..
any ideas?
another question:
can I write a flipbook to quicktime on osx? the Image viewer can't as far as i can tell?
thanks