I recently encountered some very odd behavior on my Dimension 4600 running Windows XP Home edition.

At this point the system is useless. When I boot up the system it gets very quickly to the multi-user login page after I login the system seems to just hang and eventually returns with a message stating The windows license could not be validated. Want to validate it now (yes/no)? Click either yes or no and it just reboots. After repeated attempts I actually got it to boot iinto wiindows, but it states a lack og quota and resources to run simple things like IE. It almost appears as if I am running in a safe mode of windows. I have executed a windows repair to no avail. Anyone have any ideas?