Acer 4736z - it beeps and suddenly restarts

[fretcrasher]

please help me on my acer 4736,, while in use or browsing the net,, it suddenly beeps and appears a very quick message with a blue screen background and then restarts. The fan is working well,, what seems to be the problem of my laptop..

 

[fretcrasher]

please help me on my acer 4736,, while in use or browsing the net,, it suddenly beeps and appears a very quick message with a blue screen background and then restarts. The fan is working well,, what seems to be the problem of my laptop..

By the way,, my o.s is Win xp sp 2