Question: Fixing display of math (gifs from MathML) in mapleTA3.01

This is a new user question. mapleTA3.01 is installed on an Ubuntu linux server here at maths.uwa.edu.au and on SUSE linux at maths.curtin.edu.au across the river here. We have classes (around 1000 students at each institution) about to start soon and have been forced by the maple vendor to switch from AiM to mapleTA. (And, no worries, we will try. The March start date is scary.) We are having problems with most maple-type questions, displaying maths. Intermittently, the gif for the maths does not seem to get written. These are from the maplesoft Calculus questions. It isn't in anything peculiar that we have written ourselves (and we haven't had time to write our own efforts yet). We have looked at the .qu files and remain mystified. (Personally, I think the alt tags should dump out something so that one stands a better chance of tracking errors down.) I presume maple has no problems with generating the MathML. It is something like MathType or JEuclid, isn't it, which takes the MathML and produces the gif? I don't know how it works, but I wonder if missing fonts might cause an intermittent problem. Help please QUESTION: what should we do next?
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