|Not a Dell..........it is an HP dc5100 desktop machine.|
Now when we try to run a Youtube video it is saying to install Adobe Flash Player - even though it was installed with the re-install of XP..
Originally when I tried to re-install the video drivers, I downloaded the drivers from HP but when I tried to install them I was told they were not for that machine. However, after re-installing XP, those same drivers installed with no problem.
It doesn't appear to be a video driver problem - that was my first thought when I started on the problem.
When the task manager is spiking as high as it will go, check the processes, sort by CPU Usage and see which process is driving the activity. It is probably a SVCHOST.DLL running and you need Process Explorer to see which program called the DLL.