BT3 Help

[ussr4life]

OK well I have a problem, I have BT3 Final on a boot able DVD, when I load it up everything goes fine until the desktop loads up, once the desktop loads it will show the icons and all of that but my screen will say "Input signal out of range, change settings to 1280x1024 -60Hz" so I right click on the desktop and goto configure desktop and then to display in order to change my res, once i change my res to 1280x1024 it wont let me change my refresh rate from 76Hz to 60 so the screen will go back to the original and it will display the message again, Im assuming this is a graphical problem so here is a bit of info.

screen= HPL1710
gpu=HIS Radeon HD 4670 1GB 128-bit DDR3 PCI Express 2.0

Any help would be much appreciated