Problem with the task "Play Sims on a PC"

[TonyAllsopp]

Hi
In the quest to Prepare for Pre-Teens, I cannot complete the task to get my Sim to "Play Sims on a PC"
I've tried playing on the PC in my Sims house or on the PC in one of the other houses.
Can anyone tell me what I am doing wrong?

[144Vaux]

When you look at the options for the PC the bottom one says "Play the Sims" ... is that the one you selected?