Hi,

Compaq System worked properly with Win 98.

Then OS system was upgraded with Win XP Pro.

System now not working properly with error message on trying to load Win XP stating "Sync out of range" with info about H & V hertz etc. A colourful box in the middle of the screen and it just freezes there.

Is this a problem with the video card driver or the monitor driver? I would have thought XP Pro would have ALLOWED all settings set in Win 98 to remain intact (and not uninstal as I read elsewhere).

Thanks for any help

AdamThis could be caused by the resolution being too high. If you can, try booting into safe mode. Right click on the desktop-->Properties-->Settings. Lower the resolution a bit.

An alternative is to go into the BIOS and change the monitor setting there.

Good LUCK.  The Compaq I have has onboard (INTEGRATED) video with no settings in the BIOS and no jumper to disable it.  No dedicated video memory.  Has Intel 82810 video controller.  I changed it from WinME to Win98.  HP/Compaq had almost no drivers for Win98.  Got drivers from DriverGuide.com.  Found video by using Intel utility "chiputil.exe".  At least this Compaq has a "real" BIOS.

No wonder Compaq went out of business, making oddball computers like these!!Lowering the resolution did not work, since in Safe Mode, the resolution is set to default minimum.

The solution was the monitor driver. The system had a standard plug-n-play monitor INSTALLED, but no driver. The monitor type was a Compaq MV520, and the driver was designed for Win 98. A revised driver came through later on to work with Win XP Pro. So installing the updated driver solved the problem caused by the OS upgrade to XP.



AdamAnd btw, I couldn't find the BIOS info. relating to the monitor (as like Commando said), and I must admit I was a little uncomfortable about that!

try going back to safe mode, right click on my computer, click properties, then hardware tab and then click on device manager. click on the + next to DISPLAY adapter, then right click on the item that will show under display adapter, click uninstall, then follow the on screen instructions until display adapter is completely gone. after that restart your computer normally.