No, confusedSQL. If the monitor was working well previously it will work fine on another machine with the appropriate drivers which can be found on any good manufacturers website. The monitor is the least of anyones concern. Cheap as.
XP can be a prize btch when installing on an older machine and I wouldn't recommend it at all. It sounds like your video card requires a serious upgrade. If it's integrated you can disable that and install a shiny new one.
Check that your CPU has enough grunt to cope with XP. 1800 or less could be slightly dodgy.
Any machine older than 2 years, in my experience, requires a whole new motherboard to cope with XP home or office. Go figure!