I don't have any issues........yet! lol!! I just got the HD500 and EX1 and am now in the learning process. Wow!! I downloaded everything I could find and even made my own book on the HD500 for over a year, studying it every chance I had. I was obsessed, hoping to some day own one (I have the DT50 212). Well, my wife surprised me for my birthday! (Finally got sick of hearing about it! lol!!). I thought I would be prepared if I ever got one. Wrong!!!! It's all good, tho. I'm determined to master this sucker. Everything I need, I get from you guys. Rowbi, your site is priceless! I'm just being anal right now about making sure the initial setup is right before I really dive in. Thanx, Man!!!