Pets wont age

[Venbury]

Can anyone tell me what might be wrong here.  I've had pets for sometime now, but rarely play any actual pets.  On several occassions, I have tried and had the following problems...

Twice, a puppy would not age.  He stays at 1 day old for eternity.
Once I built a new Sim and gave them a kitten.  The kitten never showed up in my game, but it does show up as though it belongs to the house and my Sim has a relationship score with it.

These were my only tries with pets.  All 3 unsuccessfull.  Amy ideas how I correct the pet not aging issue?:smt120

[citakar]

It could be that you have the cheat "boolprop DisablePuppyKittenAging true" turned on.
This well keep your puppy or kitten from aging, try holding down Ctrl, Shift , C and write boolprop DisablePuppyKittenAging false then press enter, or it could be a download.