Slight Playback Glitches

[MusicBear]

I've noticed on certain CDG tracks that I play, directly from my hard drive, I occaisonally encounter some glitches, or jumps in the music. Amost like when you play a song from a CD, and the buffer must fill or somthing. Just a momentary halt in the music.
It seems as if the graphics were a bit too much for my machine. Sure wish I could play the lyrics in a smaller screen. Anyway, is there any settings I could change to allot more memory or somthing to keep up with the graphics, and avoid the occaisional glitches?

Thanks for any replies...