When a jury requests replay of a complainant's pre-recorded evidence in chief during deliberations, the trial judge must give the warning about undue weight and remind the jury of the cross-examination and competing evidence BEFORE the replay, not after. A warning given after the jury has already reached verdicts is too late to cure the risk of disproportionate weight being given to the replayed evidence. The power to continue with fewer than 12 jurors should not be exercised lightly, but clear and forceful directions not to speculate about a discharged juror's knowledge can adequately address the risk of prejudice.
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