I have a three year old Acer Aspire X3200 desktop running Vista Home Premium sp2. I keep it updated using secunia and haven't downloaded any new software recently. My custom is to switch it on first thing when I get up, go and shower then come back and drink coffee while I read my emails but yesterday when I came back, although the drive was lit to show that it was switched on, the monitor was still black. I switched off and back on again and got the message saying that Windows had shut down improperly and did I want to boot normally etc. I did and everything worked as usual. The only strange thing was that all of the usernames and passwords that normally appear automatically when I login to places had been wiped.
I ran a complete disk check during the day which came out clean.
This morning, again I had the black screen and had to switch off at the button then on again. Windows started normally the second time and did not even ask me how I wanted to boot up and my usernames, passwords etc have not been wiped this time. It seems to be working perfectly well apart from this strange failure to load the first time.
Can anyone offer an explanation? Is this a sign that it's about to crash completely and should I be looking for a new computer?