Skeinforge not extruding

I've recently got my printer (prusa v1) up and running and was happily printing using Slic3r, but I've been having issues getting hole to come out the right size so wanted to try skeinforge to see if it improved matters.

Currently I can get skeinforge to produce some Gcode but when I try to print the hot end moves around happily and the extruder turns, but not enough to actually extrude any plastic, then it retracts and so on.

I have a feeling that it might be retracting and priming but not actually extruding, then retracting again at the next point in the Gcode.

Any help would be greatly appreciated!

UPDATE: Still confused but i checked the Gcode and the extrusion amounts is pitiful. below is the starting Gcode for my test piece:

G21
G90
G28
G92 X0 Y0 Z0 E0
G90
G21
M103
M106
M113 S1.0
M108 S45.0
M108 S11.81
G1 X83.59 Y78.74 Z0.28 F2400.0
G1 F2700.0
G1 E0.4
G1 F2400.0
M101
G1 X83.61 Y101.38 Z0.28 F708.75 E0.397
G1 X84.12 Y102.84 E0.0271
G1 X84.71 Y103.78 E0.0195
G1 X85.83 Y105.01 E0.0292
G1 X87.47 Y105.99 E0.0335
G1 X88.73 Y106.4 E0.0232
G1 X111.4 Y106.39 E0.3975
G1 X113.13 Y105.7 E0.0327

Edited 1 time(s). Last edit at 08/03/2012 11:48AM by yellow_fish.

Worked it out, Had the extruder calculated off Relative Extrusion Distance, not Absolute

or send M83 at the start of the file:
M83 - Set E codes relative while in Absolute Coordinates (G90) mode

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