If your rom a good one ?
Also try the VBA-M project
Our Project Goals Our goal is to improve upon VisualBoyAdvance by integrating the best features from the various builds floating around. Unfortunately work on the “official” project seems to have stalled. Independent developers have added excellent features to VBA, but seem to have done so individually. The source codes for many of these forks seem to be abandoned, outdated or missing altogether. We aim to preserve all of the hard work done by these developers to make the already great VisualBoyAdvance even better!