My I2C SSD1306 128x32 Doesn't display graphic on correct spot.

hi Guys: I but a I2C SSD 1306 128x32 OLED module from ebay. I use Adafurit library to make it display the demo, but the problem is the graphics are not show up on right place. It some time will show up on right place, if I re upload the code several times. Doesn't anyone know how to fix this problem?

I think I have seen this on my display as well. Not sure why though. I've noticed that if I upload a few sketches that it will start to wrap around top to bottom but it is fine if I cycle the power.