So....I redid my materials for the lab.  Got rid of almost all the glossy and what was left I set very low.  I changed my lighting to only 1 light, which I don't like as well but I was hoping I'd get less noise.  It's a disaster. The longer it runs, the noisier it gets.  I'm really confused.  How can this be?  It started getting worse at 500 samples, but I thoug ht I was imagining it.  Now at a little over 1k samples, it's probably 4 times worse than it was. Help?