hi Kamil.
155 and 156 had the graphics lib detection stripped. please download and try
dev build svn revision 167 which allows for selecting undetected graphics libs.
GD2 is the default used if even if nothing is selected. Did you build GD2 with PHP? Could you upload pictures ok?
thanks for the application info. what OS are you using? what version of ImageMagick do you have? this can be obtained by typing in: [code:1]convert -version[/code:1] on the command line.