Hi, blackwingcat and all others, first off all a great Thanks to you for your marvelous work here. I read this thread an also your Blog with lots of good information. The folowing Problem i have, investigated already about a week in searching and testing many drivers. My Configuration: Laptop Toshiba Satellite P300-1BN with a ATI Mobility Radeon HD 3470 PCI Data: PCI\VEN_1002&DEV_95C4&SUBSYS_FF501179 Toshiba itself only supports Win XP and up. installed for the testing environment: Win2k SP4 Update Rollup 1 V2 (no BSOD with kernel function anymore) Windows2000-KB888111-x86-ENU.exe I also patched a lot of driver inf file to install the video Driver. But when installed, either i got immediatly a blank screen with blinking cursor, or when i have to reboot, after the boot screen when initializing the ati2mag.sys screnn stays at the boot screen an loding continues with no screen output. Always got the same result, driver is loading but no screen Output. The only driver (installed by inf) is the on of this packet: 12-6-legacy_xp32_dd_ccc_whql.exe from AMD It's still booting with GUI but no connection from CCC possible. i think that ati2mtag.sys i loaded but of a problem vga.sys is used Is there something in the registry to influence the driver for some output lines to use? i like win2k so much, and would have to change more things when moving to XP and up. I appreciate any help and would also pay for it. Greeting from Germany Andreas