Yea that's what i meant the "File" menu's (Options,Tools,Language,Help) on the top. Well from my personal experience my computer is functioning pretty well, unless there some program incompatibility that i'm not aware of. Here's a spec of my computer and see if tat will provide you any valuable info's regarding this problem =]
P.s. I don't know if this matters but a previous version of your PokeGen 2.312 worked perfectly fine with me, just not PokeGen 3.0b15, so hope this will help you find out my computer problem!