I haven't tried the libraries out, yet. Thus far my simulation has been working well using Td=15 and Td=10 on my gates.Good - did you download the 74hc and cd4000 libraries?
OK, keep in mind that under the "Edit Simulation Command", the "Stop Time" is what determines how long that the simulation runs; the default unit of time is seconds - so, 60 seconds is 1 minute; 3600 seconds is 1 hour, etc.
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Ah-hah! I assumed since it said "1s" I could put "10h" for 10 hours. Silly of me, problem solved! I have it set to 3600 seconds, now. The simulation took around 10 seconds to fully load.
I'll check more into the libraries soon, I promise.
This forum makes me feel like a kid in a candy store with an unlimited budget. So much fun stuff to learn about and play with!