Using on-the-fly with objects

[vsully]

Here's a section of the code I'm running in the constructor:

---
viz.startlayer(viz.LINE_STRIP)
viz.vertexcolor(Color)
viz.linewidth(Size)

for x in range(trailSize):
viz.vertex(x,0.3,0)
self.trail = viz.endlayer(viz.SCREEN)
---

Spot anything?

Secondly, I can't seem to get the transparency working right.
With this line of code:

---
trail.vertexcolor((cur_vertex+1)%TRAIL_SIZE, viz.YELLOW, 0)
---

The line still shows up bright yellow. viz.BLEND has been enabled. Spot anything here?

Sorry for the spam, and thanks for your help.

-Aaron