brakes sticking...thoughts?

[sactoC10]

OK.

As we know thus far, I've put in new pads, flushed my old fluid and just bought new front brake lines, and installed them Saturday. Took it for a test drive and all was well for about 5-6 miles this time, then the sticking started again.

Got home, opened up the hood to peek at the master cyclinder and this time fluid had squirted out of it. So, took a trip to the parts store yesterday, bought new master cylinder and installed it but I never comepleted bleeding the lines.

Any help with this? Advice? I have a vacuum pump and I've done it before, but have never replaced a master cylinder before. What do I need to know...especially that proportioning valve trick/tool info.

I think I am doing something wrong, or forgetting something.

JT in Sacto