You fixed the capacitor value, but as I predicted, it is still not oscillating. Looks like you did not "Read The Flipping Manual" to determine how to add the .Initial Conditions directive as I asked you to...
Here is a way to accomplish the start-up by including a pulse voltage source V1 in the feedback loop. Note that for the first 3ms, the pulsed source V1 makes a voltage of 1uV, and then at 3ms, it turns off to 0V thereafter; (see V(z)-V(w) in the lower plot pane). The little -1uV step at 3ms is enough to "kick" the oscillator into starting. Note that V(z), V(y), and V(x) are flat-line prior to 3ms, and show the oscillator behavior after 3ms.
It is the dv/dt of V1 that begins the oscillation. A real circuit would easily have 1uV of noise at V(z) due to thermal effects, but the simulated circuit doesn't, so we have to add it artificially.
Good example of why ORCAD is a crap simulator. It tries to hide all of the capability (and complexity) of Spice from the user.
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