Question: Maple's DAE Solvers

Can someone help me with how to use Maple's DAE solvers? See the PDF file below with my attempt to solve a system of 2 differential and 1 algebraic equation. I can't go beyond the second solution (f2,p2). What does this error message below f3 line mean? If I start from the reset line again and skip f1,p1,f2,p2, then I can get solutions (f3,p3), and (f4,p4), but not in the sequence f1,p1,f2,p2,f3,p3,f4,p4. What am I doing wrong? I tried all 3 DAE solvers, different abserr, relerr and numpoints values - nothing seems to help. I certainly use consistent initial conditions. The algebraic constraint is quadratic in all 3 variables. I will appreciate any help. Anyone with experience in using these 3 DAE solvers? Thank you.

<a href='http://www.mapleprimes.com/files/7969_MHD_MEBDFI_Febr11.pdf'>Download 7969_MHD_MEBDFI_Febr11.pdf</a><br/><a href='http://www.mapleprimes.com/viewfile/2119'>View file details</a>