Just spent some time searching the forum, but have a few questions I'd still like to ask. my plan is to eventually have a stereo 6581 with basic control surface+filters. First step for me has been to assemble the basic core/sid/led/simple surface combo. I got some 6581 chips, some smashtv kits and some mouser LCD, button and encoder stuff. my first problem: Using the C64 power supply I was unable to get the core to work. The 5v from the C64 wasn't enough juice to get the core/lcd to work. I plugged in a 9v wall wort and the core worked fine. Is this because I used to wrong regulator or something? even with this issue i pushed on with two power supplies plugged in my surge protector. I Uploaded the code and connected my sid (after testing voltages). Thats when I came up against the next problem: I connected the sid to the core as shown and when I power it on I can hear the blaring noise floor of the chip but can't get it to make a sound with my MIDI keyboard. The LCD displays the program fine, but no sound. I'm waiting to get my PC back from my girlfriend so I can upload the test tone program and see if that works (I'm writing on a mac that I couldn't get java/midi friendly). Ok, so if that's not enough, I'm afraid to say that my control surface also didn't work. I got a DIN board from smash and connected my buttons and encoder, but no go. Am I missing something? Is there a software script I need to upload or edit to get these to work? The encoder I got has five pins http://www.mouser.com/catalog/specsheets/TW-700201.pdf. I should have read a little more before I ordered it. I know I got the ground right, but does it matter what other pins I use? I just picked two and went with it.... please don't fry me, I know I asked a ton of questions and I'm sure my search abilities missed some answers on the forum and the wiki, but I did my best. Any troubleshooting tactics would be great. I'll try and borrow a camera for some pics. henry