Has anybody had any success with getting this card working in OS X? I've searched all over the place and couldn't find anything helpful about it. I've successfully installed OS X on my Dell Studio 1555 but in order for it to be really usable, I'd at least need to change the resolution to the native (1366x768), is there any way to do at least this?

The specs are as follows:
Intel Core 2 Duo T6400
Intel PM45
15.6" display
4GB RAM 800MHz
320GB Serial ATA HDD
ATI Mobility Radeon HD 4570
Dell Wireless 1397
Dell TrueMobile Bluetooth

Thanks in advance..

yes its not a easy installation
but there are good guides
in my HCL list you will find a link click here

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Asus P5W DH Deluxe runnig osx for 3 years now (10.5.4 ideneb)
Asus P5N 7a VM 10.5.7 custom installation
dell 6400 10.5.1 intel video
Iportable OSX86 universal = Live leopard for intel and AMD's on a USB stick!

candykane, I checked your link but it says nothing there about the Dell Studio 1555 or the ATI Mobility 4570HD. Am I missing something ?

ATI Mobility Radeon HD 4570 oeps sorry your right to mutch beer last night
sorry about that wel you dont have a driver installed i take it. you could use the universal installer bye pcwiz to force a differend screen resolution download and use select a screen resolution you want to boot and install

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Asus P5W DH Deluxe runnig osx for 3 years now (10.5.4 ideneb)
Asus P5N 7a VM 10.5.7 custom installation
dell 6400 10.5.1 intel video
Iportable OSX86 universal = Live leopard for intel and AMD's on a USB stick!

Hey schpinn, could you please tell me what install disc and drivers/kernels you used to get it working on your Dell Studio, i have been trying for weeks, tried Leo4Allv3 and iPC and all has failed, any help?