A friend of mine has a fairly new computer, Intel Celeron 1.1GHz CPU with 512MB Ram, 2 hard drives (on the same IDE), and a CD Burner.
When the system starts up it runs at a good speed, applications open fast, fast saves, etc. etc.
Over time (minutes/hours) the system gets slower and slower, until it gets so slow (after about 3 hrs) that the system needs to be rebooted.
After reboot the system is back to full speed and will agin slow down over time.
Any hints on what to try?