People have various problems with Sonys. Even when the specs say it's compatible, it turns out it's not. And here you have ATI mobility card, which almost certainly won't work.

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Fujitsu Siemens Amilo Pi 3525 (Snow Leo 10.6.2 Hazard distro)
C2D T5800 @ 2GHz; Chipset: Intel G45 Cantiga; 3GB DDR2; Kingston 64GB SSD
Realtek 8169 (from Realtek's site); Intel WiFi 5100 AGN not woking; ALC 662
VGA: x4500 working with dual display (DVI2VGA dongle + VGA cable for Samsung 223BW) with proper resolutions, no QE/CI