Hi .... I have been trying to solve Stokes equation in 3D micro - geometrical meshed. I'm currently exploring the Fluid model>Creeping flow>stationary of COMSOL 4.4. Comsol failed to solve my problem. it continue showing me "Failed to find a solution. Divergence of the linear iterations.Returned solution is not converged". Going through discussion forum, someone suggested that unchecking "p" on "solver manager" in "solver paramters" would help solve the problem. Please can anyone help me on how to locate this SOLVER MANAGER in COMSOL 4.4.? or what is the best approach?.. Thank you all, Otaru, A.J.