xemacs hangs with -current

[Yamada Ken Takeshi]

  With these one week cvsup'd current, my xemacs hangs
quite easily with operation like moving cursor beyond
the end of line, some random mouse clicking, etc. (signal
related??)

  Any fix, or suggestions?
  
  I am using ;
A) FreeBSD 5.1-CURRENT #12: Fri Jul 25 23:37:43 JST 2003
CPU: Intel Pentium III (802.93-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x686  Stepping = 6
  Features=0x387fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CM
OV,PAT,PSE36,PN,MMX,FXSR,SSE>
real memory  = 805240832 (767 MB)
avail memory = 773910528 (738 MB)

B) XFree86 Version 4.3.0
Release Date: 27 February 2003
X Protocol Version 11, Revision 0, Release 6.6
Build Operating System: FreeBSD 5.0 i386 [ELF]

C) kde 3.1.2 

D) xemacs 21.5.13