Is anybody interested on remote support

[Altera_Forum]

I am, because the BCD counter with logic (like the one attached) is not counting down correctly. what should I do?

[Altera_Forum]

some basics: 

www.engr.panam.edu/~kuangw/courses/elee4303/lecture13.ppt

[Altera_Forum]

What do you mean by "is not counting down correctly"? 

You are using gated clocks in your design, which is a very bad habit and can generate all sort of problems. You should directly connect all your clocks to the clock pin and use clock/count enables instead.

[Altera_Forum]

Plus you're using internal tri-states. These just get converted to muxes at the end of the day (unless they're actually on external IO pins). It just slows down synthesis time.