[TYPO3] bug or bad code text.field = title prevents page display?

[Matthew Manderson]

Hi

I have a bug or bad code with my HMENU 

My standard GMENU crashes and prevents the page being output. Simply a blank
screen with no html and no errors.

So I comment out this line

#  10.text.field = title

and the page is generated fine, the GMENU works but of course just blank
images for links with no text title.

I stripped my template down to just this below but the problem still exists
until I comment out that pesky text.field line.

# Default PAGE object:
page = PAGE
page.typeNum = 0
page.10 = TEXT
page.10.value = HELLO WORLD!
page.20 = HMENU
page.20.1 = GMENU
page.20.1.NO {
  XY = [10.w],[10.h]
  backColor = #cccccc || #eeeeee
  10 = TEXT
  10.text.field = title
  10.offset = 0,7
}


Using v4.0.1 
Any idea where to start tracking this down? could it be a file permission
somewhere?

Thanks

-- 
Matthew