YK may have hit the nail on the head with the suggestion that the graphics may be calling it a dau with the device failure message. However it may not be the the device per-se but the driver Upgrading from 98 to XP is a total shift of all devices because of the new file system. Some older devices have no drivers available for NTFS[XP] So check your driver status. Is for for example the graphics card integrated with the Mo-Bo or a third party device? In either case is there a Win 2000/XP driver for it? Compatability is the name of the game. It is increasing evident these days that 'upgrading' may be a 'fun' thing to do on a see what happens basis. But for real practical purposes -replace is the order of the day
Thanks - I'll investigate the graphics card situation.
I couldn't read the error message for sure because of the fuzziness. It was possibly 880 or 881. I googled them and there was something about 'the modem'. I'm using a brand new external modem on this PC.