Like previous posts I was wondering about Ztronics experiences. My D900T just crapped out this weekend after having it since 12/2004. Four years isn't too bad a run from what I'm reading here. I hope I can spend the $209 on the v5.3 and not have to get the 6.x. I too found the aforementioned teardown pics invaluable in opening mine up.
9/30/08 at 5:42pm