I'm trying to install this distro on my pc (dell xps gen2):

ACPI x86-based PC (Mobile) Mobile Intel Pentium M 770, 2133 MHz (16 x 133) Mobile Intel Alviso i915PM
1024 MB (DDR2-533 DDR2 SDRAM) NVIDIA GeForce Go 6800 Ultra (256 MB) SigmaTel STAC9750/51 @ Intel 82801FBM ICH6-M - AC'97
HTS726060M9AT00 ATA Device (60 GB, 7200 RPM, Ultra-ATA/100) Broadcom 570x Gigabit Integrated Controller
Gigabyte GN-WIAG/GN-WPEAG (mini) PCI WLAN Card Controller FireWire Ricoh RL5C552 IEEE1394 Controller (PHY: Ricoh RL5C552)

I have a problem with my graphic card, i haven't the possibility to change resolutions other than 1024x768.
Can someone help me?