problems starting oocalc and any OOorg apps in FC4 with nfs4 mounted home dir

[Alastair Neil <ajneil@xxxxxxxxx>]

what is happening:
any openoffice app starts to load, displays the splash screen, however the progress bar is never displayed and the
app hangs indefinitely.  A strace ends in:
> read(255, "\n# set path so that other apps c"..., 4800) = 264
> rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
> rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
> rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
> rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
> rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
> rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
> rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
> rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
> rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
> _llseek(255, -58, [4742], SEEK_CUR)     = 0
> clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7f48a28) = 5264
> rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
> rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
> rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
> rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
> rt_sigaction(SIGINT, {0x80760d4, [], 0}, {SIG_DFL}, 8) = 0
> waitpid(-1,
>   
what seems to have precipitated it:
this was a test, the home directory was originally local in
/home/ajn,  then I was experimenting with automounting via nfs4
gss/krb5
for a while I was running with a local home directory /ahome/ajn and automounting on /home/. I did notice some openoffice apps 
attempting to open files in /home/ajn when I had changed my home
directory to /ahome/ajn.  It looks to me like openoffice is
storing 
some state information as absolute paths - which seems wrong to me, it certainly bites you if you move your home directory.

Currently the home directory is the automounted /home/ajn and I cannot
run any openoffice apps.  Does anyone have any pointers 
as to what dotfiles I need to blow away?

thanks Alastair