CutyCapt seems to ignore the Xvfb screen size parameters

I have a problem using [CutyCapt](http://cutycapt.sourceforge.net/) to create images rendered for a particular screen size. For example, if I do these: xvfb-run --server-args="-screen 0, 800x600x24" \ ~/bin/CutyCapt/CutyCapt --url='http://stackoverflow.com/search?page=2&tab=relevance&q=cutycapt%20xvfb ' \ --out=STACKOVERFLOW_1.png xvfb-run --server-args="-screen 0, 800x600x24" \ ~/bin/CutyCapt/CutyCapt --url='http://stackoverflow.com/questions/65078/what-is-the-best-way-to-create-a-web-page-thumbnail ' \ --out=STACKOVERFLOW_2.png I get images of sizes: STACKOVERFLOW_1.png : 975x2611 STACKOVERFLOW_2.png : 975x2226 I believe any stackoverflow page will be of a width of 975 pixels. This is not what I asked (w=600). Is it possible to create images using CutyCapt with Xvfb that are rendered for a particular screen width? PS: uname -a yields Linux yalabs-linux0.yandex.net 2.6.27-17-server #1 SMP Fri Mar 12 02:48:52 UTC 2010 x86_64 GNU/Linux