typo3 language menu with typoscript files not found - typo3

Question

I try to add a language menu with typoscript, but the files I want to add as images ar not working.
my typoscript looks like this:
## Localization menu:
temp.langMenu = HMENU
temp.langMenu.special = language
temp.langMenu.special.value = 0,2
temp.langMenu.1 = GMENU
temp.langMenu.1.NO {
XY = [5.w]+4, [5.h]+4
backColor = white
5 = IMAGE
5.file = fileadmin/bilder/DE-flag-32.png || fileadmin/bilder/US-flag-32.png
5.offset = 2,2
}
temp.langMenu.1.ACT < lib.langMenu.1.NO
temp.langMenu.1.ACT = 1
temp.langMenu.1.ACT.backColor = black
temp.langMenu.1.USERDEF1 < lib.langMenu.1.NO
temp.langMenu.1.USERDEF1 = 1
temp.langMenu.1.USERDEF1.5.file = fileadmin/bilder/DE-flag-32.png || fileadmin/bilder/US-flag-32.png
temp.langMenu.1.USERDEF1.noLink = 1
Cache is clean ...
result is this:
links are working but no image. in Site-source code the image got this path:
<img src="/typo3temp/menu/4baf3d2e70.gif" width="36" height="36" alt="Home">
Whats my Mistake in this case

Answer 1

I usually have a similar approach:
temp.language = HMENU
temp.language {
special = language
// 0 = Deutsch, 1 = Englisch
special.value = 0,1
wrap = <ul class="langmenu">|</ul>
1 = GMENU
1 {
NO = 1
NO {
format = png
// size of flag grafics
XY = 38,17
transparentColor = #00FFFF
backColor = #00FFFF
10 = IMAGE
10.file = fileadmin/flags/de.png || fileadmin/flags/uk.png
10.offset = 10,0
10.file.width = 28
10.file.height = 17
wrap = <li>|</li>
}
ACT < .NO
ACT {
20 = IMAGE
20.file = fileadmin/flags/arrow.gif
20.format = png
20.offset = 0,3
noLink = 1
wrap = <li class="act">|</li>
}
// if translation is not available:
USERDEF1 < .NO
USERDEF1 {
// the grayscale effectdoes not work with some IM versions
30 = EFFECT
30.value = gray | gray=1 | grey | grey=1
// the same flags like above, bleached
40 = EFFECT
40.value = gamma=5
// naturally this should not be linked either
noLink = 1
}
}
}
differences which might be important:
I use constant values for the generated images and no blank after the comma
I give explicit sizes for the used images
I use color values instead of color names
I use transparent color

Answer 2

Image generation on the server (the install tool checks) is working in general? Pay special attention to the GDlib tests
install of imagemagick does the job