Okay copied the modified video kexts from my 10.5.5 installation into my new 10.5.7 installation and bingo I now have full resolution capabilities. Guess the only thing left to do now is to browse for a new video card for this old bird and see if I can find one that is supported natively in 10.5.7, I do not plan on trying to "fix" this machine any further. I think she has gone as far as I can push her and surprisingly for an "older" box she runs pretty smooth....next comes Snow Leopard on my new machine.

Thanks so much for all your help and patients. I have learned more in the past two days about Mac than I have ever dreamed I would.

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OS : Snow Leopard 10.6.8
Motherboard : Gigabyte GA-M68MT-S2
CPU : AMD Athlon II X4 645, 3.11 GHz
RAM : 4GB Crucial PC3/16000 DDR3
GPU : nVidia Geforce 210 1 Gig Full Hardware Acceleration
Sound : Onboard Audio Realtek ALC887
LAN: Sonnet Gigabit PCIe Ethernet Controller
Monitor : Acer S231HL 24" Wide Screen 1920 x 1080 @ 60 Htz
USB: Keyboard/Microsoft Confort Curve 2000 - Mouse/Logitech M185
Bluetooth: Apple Magic Tracpad/ DLink DBT 122 Bluetooth Dongle