It's been about 11 years since I used Pspice. How do you run a transient sim? Most Spices use .tran <step size> <end time>. If this is how you do it, you can also do the following:
Place a node name on the noninverting input node. Let's say you call it "A". Use the directive
.ic v(A)=1
then run the simulation. If that makes no sense to you look in the documentation for "initial conditions" or ".ic" (which you should have done already). Failing that, maybe one of the other trolls here can help.