Segfault in SystemPreferences

[Andreas Schik]

Hi all,
last week (May, 27th) I upgraded my GNUstep installation from SVN and 
encountered problems with SystemPreferences and GWorkspace.
Both simply segfault during startup. Additionally, GWorkspace tells me 
that is cannot load English.lproj/PrefWindow.gorm.

In both cases the debugger shows that the crash happens in 
-[GSFFCallInvocation initWithMethodSignature:]. Here is the bachtrace:

#0  0xb794a873 in -[GSFFCallInvocation initWithMethodSignature:] (
    self=0xc1f00000, _cmd=0x200862, aSignature=0x38220000)
    at GSFFCallInvocation.m:548
#1  0x00050000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

No, I did not compile -base with debug info, yet, as I did not have time 
so far, but maybe someone already has an answer for me and spares me 
debugging -base :-)

TIA
Andreas