I'm sorry if this has already been addressed but 400 pages is a lot to go through, i have read the first 20 or so pages. I am hoping the inventor or some of the more frequent forum users can help (or direct me to a page where this is addressed). I bought my PD back in Feb. this year and it worked great up until last week when my power supply failed, this issue began a few days before total failure, i assumed it was because the power was cutting in and out not allowing the unit to get to full temp. I believe the failure was due to loose wires as when testing it in other outlets using a multimeter, it would show voltage sometimes but 5 min later show none. I purchased a new supply from radio shack it was a 1000mA, 3-12v (they only had voltage adjustable models) set to 12v, with type M connector. The PD has gone from giving about 10 good hits per pack to 5 weak hits. I use about 1/10 of a gram, fairly dry, ground with a mendo mulcher (not sure of grinder specs, if they are relevant I will find them) The abv was coming out a light to dark brown and is now coming out a lighter green then put in with some browning. After the first few hits it will just stop giving any vapor when there is still plenty to be vaped. Unit still feels as warm as it always has, not sure if that helps. Does this sound an issue with my new power supply, possibly a temp issue, a conduction issue, or some other internal issue i should send it in under warranty for? Any thought, suggestions, or direction to other areas of the forum/thread would be appreciated.