so i have a lowres banner that im making for my black templar spacemarine… the problem is when i try to polypaint the text 1024x2048 texture onto the 10million poly banner the text comes out jagged… any suggestions? 
Try reading this…it may apply to your situation:
http://www.zbrushcentral.com/showthread.php?t=27680&highlight=texture+resolution+Aurick