Any suggestions for treatment of rubber moulding around the windows? This white residue builds-up and won't come off with vinylex, black-again, etc... Any suggestions?

What are you using to apply/clean those areas? Often I've found that if you just rub over the edges or with just a bit of figernail pressure it wont do much no matter what you use. If you can get under the edge of the trim and agitate back and forth with either a rag with a good bit of nap or a tooth brush (careful to keep the bristles off the painted surfaces) you can usually get very impressive results. If, using those techniques, you still don't have any luck try some Windex or other solvent type cleaner. Then once you have cleaned it with Windex go back over the now clean areas with Vinylex or a similar product.

Hope this helps...Lee