Thanks for your reply.

So Maple's dsolve/numeric cannot solve a parametric bvp?

Thanks for your reply.

So Maple's dsolve/numeric cannot solve a parametric bvp?

@Preben Alsholm The code I am trying to run is 

eqn := diff(Y(x), `$`(x, 4)) = l^4*Y(x);

bc := Y(0) = 0, (D(Y))(0) = 1, (D(D(Y)))(0) = 0, Y(.5) = 0, (D(Y))(.5) = 0;

sol := dsolve({bc, eqn}, numeric);

Error, (in dsolve/numeric/BVPSolve) matrix is singular

Thanks,

Lars