A fast PCD8544 library (Nokia 5110)

Hi, All!

Pretty dumb question: I've tried not to connect lcd screen via 4050, but to connect it directly. Nothing worked. Double checked all connections. Should I really use 4050?

I've sucessfully ran same 5110 screen with this sketch: http://blog.stuartlewis.com/2011/02/12/scrolling-text-with-an-arduino-and-nokia-5110-screen/ . Any ideas what went wrong?