On booting some mornings I get as far as the initial backlight of the primary monitor and then it just stays there. It does not get as far as the XP splashscreen which normally follows around 10 or so seconds later. Followed another 10 or so seconds later by the other 3 monitors and the Windows log in. This to me suggest that it is not the Win XP video driver and also although it may be hanging at the first screen, the video cards/drivers may be fine, rather it could be stopping at the backlight of the monitor because it is the NEXT thing to load that is actually the thing that is hanging, but how would I isolate what that is? One thing I have thought of doing is switching the video card around. the problem seems solved for at least one boot by disconnecting totally from the power supply and then switching back on. have checked all video card + monitor connections. Re- installing the driver seems irrelevant if this is happening pre Win XP load On switching off and restarting after the failed boot I am presented with the option of amongst other things "last known good menu" which so far has worked when selected (does this indicate that it actually IS Win XP driver). One day that happy sate of affairs may not occur.............. Seems to me it is a hardware recognition issue or a piece of hardware is failing and I somehow hae to isolate which piece of hardware its. Cards are 2x twin ATI FireMV 2200 installed for 1+ years, Win XP SP1, 2x Samsung 191T + 2 misc. Any suggestion as to other forums to post this on are appreciated.