Visual Boy Advance help

I downloaded the emulator (and dbz: legacy of goku 2) and started playing it no problem. I went into the preferences and tried to make the screen larger. I enabled full screen and i think i had put the screen size to 2x or 3x. After closing preferences nothing changed so i assumed it had to be reopened for it to take change. After reopening the app, the screen did get larger but it remained black and now it won't open. Please help me, I don't know how to fix it. I can't click on the preferences as the app isn't actually running until the screen goes black. I have deleted it and re-downloaded the application but that doesn't seem to have helped

I got the same black screen when I opened VBA in full screen. Press Alt and then use arrow keys and your menu bar should show up. Pressing Esc made the menu bar flash on the screen for about .3 seconds, but Alt'ing to the menus will keep the menus you looked at on the bar.