Your Ram Memory
is barely enough for XP to use. I'm guessing it has worked fine for you in the past but I always suggest upgrading it with XP to make sure there are no problems in the future.
and run the Crucial
This will give you the exact memory configuration for your system. You do not have to buy the memory from there, but write down the information and if you need assistance in purchasing the upgrade memory GTG can assist with suggestions also.
Next do you have the original Windows XP Media Center disk?
If not then the laptop will have the recovery partition on it that we may be able to utilize.