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This is extremely annoying. I have a very large (this seems to be critical) equation system. It's partly linear, partly horror, but already after I solve the linear part, a certain solution (which is obviously one since substituting it in makes all equations identical zero) can't be found anymore. The solution has some surds (this also seems critical, the ones without are found) but the equations are strictly polynomic. Faked Example (the real one only PM-ed, since it's a bit oversized): x-y=1 x^2+y^2=3 x^3-y^3=4 and after y was eliminated, it doesn't find x. (=golden mean here) Huh? -- Hauke Reddmann <:-EX8 fc3a501 at uni-hamburg.de Er-a svo gott sem gott kveða öl alda sonum, því að færra veit er fleira drekkur síns til geðs gumi.