Mine works fine at 1600x1200. Its an Nokia 446Xpro. My graphikcard is a AGP Millenium 200 with 8 MB SDRAM. That is, for what I know, the G200 chipset. I am runnnig xserver-svga 3.3.5.1. Cant say anything for 3.3.3 or 3.3.4 because I just tried this resolution to see the results on my machine. My motherboard is a ASUS P5A 85kHz / 86 Hz