Yi

*633 The parties appeal and cross-appeal a judgment after a jury trial in this business dispute. Plaintiff and cross-defendant IIG Wireless, Inc. (IIG) obtained a judgment of $401,860 against defendant and cross-complainant John Yi. IIG also sued Lauren Kim, Yi's fiancée, who moved for and was granted a nonsuit during trial. Yi obtained a judgment on his cross-complaint for $122,000, resulting in a final judgment of $279,860 in IIG's favor.

*634 Yi appeals the judgment and the court's denial of his motion for judgment notwithstanding the verdict (JNOV). In sum, he argues there was no substantial evidence to support the verdict, the court made numerous errors with respect to the introduction of evidence and its conduct of the trial, and the damage award of $122,000 on his cross-complaint was inadequate.

IIG argues there was substantial evidence to support the verdict, the JNOV was properly denied, and the damage award on the cross-complaint should be reduced. In its cross-appeal, IIG argues the court should not have granted nonsuit as to Kim. Further, IIG contends the trial court erred by denying its motion to amend the complaint and to admit certain expert testimony.

We…