X11 leaving lock file; wont start

[rfjones]

> On 4/24/07, rfjones <jonesrf1 qwest net> wrote:
>         I have fc6 standard install libX11-1.0.3-4.fc6
>         More often than not  windows wont start at boot until I manually remove
>         the lock file in /tmp.
>         How do I get this to stop?
> Log off or selecting shut down from menu before powering off would help.
> 
This happens even after shutdown from menu; separate problem with no menu shutdown option
TIA
rfjones