Hey Zaggart,
Yeah they still fix Duo's. write an email to TZD and they'll get a hold of Retro Games for you.
BUT beware that when My Turbo broke a week before X-mas , it took me over a month to get any response from Retro Games, and when I sent my Duo in. It took over a month to get it back. AND, they never fixed my Duo, they just sent me a different one with the HuCard door broken off! Which I'm already having problems with. It takes for ever to load, and I get frozen screens of Death occasionally.
To this guys credit, he IS extremely busy, and is getting married really soon. So I guess you just bare with him.
Hope you have lots of luck.
Josh
PS: I'm picking up a Brand new in box- Turbo Duo R, so I hope that fixes my Duo woes.