Is there compatibility issues using nvidia gforce fx 5500 agp 256 on this game graw 2.

Ghost Recon: Advanced Warfighter 2 Minimum System Requirements--- * Supported OS: Windows® XP/Vista (only) * Processor: 2.0 GHz Pentium® IV or AMD Athlon" (2.8 GHz Pentium IV or AMD Athlon recommended) * RAM: 1 GB * Video Card: 128 MB DirectX® 9.0c/ Shader Model 2.0-compliant video card (256 MB video card recommended) (see supported list*) * Sound Card: DirectX 9.0c-compliant * DirectX Version: DirectX 9.0c (included) * Hard Drive Space: 5.0 GB * Peripherals: Windows-compatible mouse, keyboard, headsets (via TeamSpeak client) * Multiplayer: Broadband capable of 128 kbps or better required *Supported Video Cards at Time of Release NVIDIA® GeForce" 6200-8800 series ATI® Radeon® 9559, 9600, 9800, X800-X1950 Laptop versions of these cards may work but are NOT supported. Additional chipsets may be supported after release. Please check http://support.ubi.com for the most up-to-date list of support video cards.

from the look of these requirements, It would seem to me that the 5500 wont work very well "If at all"

The key words are "SHADER MODEL 2.0 COMPLIANT VIDEO CARD"

If the card supports this shader model, then it's capable of running the game.