Sorry about my previous generic message. :) Solve should not be returning RootOfs of degree two equations by default; it would be much nicer if it returned the more elegant radical form. Also, we are of the opinion that the Explicit option should not also require the presence of the AllSolutions option to get every solution to appear in radical form. Wei

The issues mentioned in this thread are now tracked in Maple's internal bug-tracking system. Thank you for letting us know. :)

These issues are now tracked in Maple's internal bug-tracking system. Thank you all for your analysis of this bug.

This issue has been tracked in Maple's internal bug tracking system as a weakness in the error message from pdsolve/numeric. Thanks for bringing this to our attention.