>I have a client who has gone against recommendations and purchased a real fancy Mizellan computer (AMD 200 megahertz)
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>The customer is experiencing a bug that seems to be impossible to reproduce on a pentium machine. The receive an error 10 syntax error and then the machine locks up. No other client has reported a similar error running the same software.
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>Any experience or referrals that can help me convince the customer to by a good computer (Gateway, Dell, etc...) would be appreciated.

Besides being a fox programmer for years, I do hardware job and use AMD where POSSIBLE. I would bet the problem could be reproduced just by replacing the CPU with a Pentium 200MMX.
If your customer have an AMD K6 200 then he already has a good computer (in parallel with my self recommendations) :) AMD K6 200 was my former CPU and now I have upgraded to AMD K6-2 333 :) (In our institution there are also PIIs and I have a chance to choose the best one :). Except K5 series, AMD processors have always been the best on the market with respect to performance/cost ratio (Celeron CPUs and slot 1 architecture are kind of a trap you'l see in future). (Compaq, Dell and IBM also use AMD processor models if you are a BRAND fan, I don't define a "good computer" by brand but by parts used in assembly, IMHO "no name" is the best brand). Intel is superior in promotion only (IMHO again).
Now "syntax error" there. I would suspect of RAM first then the rest of the hardware (might be software problem too). Even a CPU cooling fan could be the problem. The first time I saw that error was when I was using an Intel 486 :)
Cetin