[Typo3] Problem with the gifbuilder-object

[Cornelis Kater]

Hello,

I've got a mysterious problem with the gifbuilder object. I wanted to to a 
simple thing - generate an image with is rendered with the title or subtitle 
of the actual page.

My TS is as follows (lib.leiste is my image-object):

lib.leiste = IMAGE
lib.leiste.file = GIFBUILDER
lib.leiste.file {
  XY = 572,80
  format =jpg
  quality = 80
  10 = IMAGE
  10.file = fileadmin/templates/images/rubrik.jpg
  18 = TEXT
  18.text.field = subtitle // title
}

I built the site with TV, is there an issue with field informations 
(subtitle, title, uid... all testes fields didn't work) which are not set as 
they should be normally?
My code ist quite simple and inserting static text did work well, only 
writing the dynamic informations is a problem.

Thanks,

Cornelis