screen door rollers

A home owner from minneapolis says:

date: 11-08-09

The plastic scrren door rollers are broken - removed all screws to replace this type of roller but roller will not pull out - any suggestions?

date: 11-13-09

Normally there is just the one adjusting screw that goes from the screen door rail through the hole of the spring of the Screen Door Roller. Pull the Screen Door Roller out from the bottom cut out with pliers.