I have played with the SSD1306 Library and it works very well. Thanks!
I have added some new SSD1306 controller commands to the library and wrote a little help text. I only added some new commands and changed nothing in the existing library.
In the enclosed file you find all the stuff from Ray Ellam, plus a new demo_v0.3.bas, the library SSD1306_24.11.2016.inc and the help text.
I tested the new functions with a 18F26K22 64Mhz with external and internal oscillator.
Perhaps somebody who is using the current library can test the new commands. When there are no bugs in the new parts, Ray Ellam could possible update the WiKi.
<Edit> added commands: SSD1306_Contrast SSD1306_DisplayOn SSD1306_DisplayOff SSD1306_DisplayInverse SSD1306_DisplayNormal </Edit>