Slider bug
Just noticed, if you load a slider onto Mira who's output minimum is negative on Mira the little box that appears telling you the value of the slider will give a positive value.
Max Patch
Copy patch and select New From Clipboard in Max.
Here's an example:
Sacre bleu. You're right–in fact slider doesn't respect output minimum at all. Massive thanks for finding that! We'll fix it for the next release.