Jerry,
I had the same issue with mine, it would hardly respond at all. I swapped it with the one from the Kitchen and that solved the problem a little but now it wont toggle down, only up.
NW RV Supply in Eugene, OR has these toggle switches.
www.nwrvsupply.com/ (They are about $45 if I recall)
Problem is they have a different base than what was used in our coaches, it's much smaller. According to them, it can be made to fit but I have not tried that yet. I have been able to get by with the other switch, just have to toggle up only, selecting items on the menu by toggling right still works.
On the subject of Aladdin, I was quoted about $3,600 by Silverleaf when we were at Canyonville last year to swap out the Aladdin. I might do that someday but I like Tim's solution of mounting a small tablet or PC and using the VMSpc software they have.
Good Luck!
Dean Johnson