TYPO3 Core

When upgrading to rc2, all images processed by imagemagick in the frontend got blurry. I checked the Image processing section of the install tool and a lot of the tests fails. I have tried to change different settings in $TYPO3_CONF_VARS['GFX'] but to no avail. The tests that fails are:
Read JPG (blurry)
Read GIF (blurry)
Read PNG (just a white image)
Read TIF (blurry)
Read BMP (blurry)
Read PCX (blurry)
Read TGA (blurry)
Read PDF (blurry)
Read AI (blurry)
Scaling PNG to PNG (no image at all)
Scaling GIF to JPG (blurry)

All the other tests work. I've attached an image so you can see what I mean by "blurry".

PHP Version 4.4.1

ImageMagick enabled: 1
ImageMagick path: /usr/bin/ (5.5.6)
ImageMagick path/LZW: /usr/bin/ (5.5.6)
Version 5/GraphicsMagick flag: im5

GDLib enabled: 1
GDLib using PNG: 0
GDLib 2 enabled: 1
IM5 effects enabled: 1 (Blurring/Sharpening with IM 5+)
Freetype DPI: 96 (Should be 96 for Freetype 2)
Mask invert: 0 (Should be set for some IM versions approx. 5.4+)

File Formats: gif,jpg,jpeg,tif,bmp,pcx,tga,png,pdf,ai
(issue imported from #M3012)