You sure you will be able to fit an 8800GTX in there??
Umm...don't they do it at the factory before you get the system...i believe you can only upgrade the graphics card in laptops after you get them from very high-end laptop manufacturers....
It's called you bought the Go 7800 CAUSE THE E1705 doesnt have an option for a GTX. later down the road BAM you want a go GTX so you install one with a bios flash to show your system as an XPS M170