Blue Screen of Death appears in my laptop!

It was my horrible experience in using laptop. My laptop appeared the Windows OS famous Blue Screen of Death (BSOD). Indeed, it used to happen few weeks ago. I thought it was my software crash. I fixed it and just ignore after all.
But, BSOD came again on last SATURDAY night. It caused me unable to start my Windows, and even in safe mode! The message said something like physical memory dump. Then, I shut down the laptop and wait for tomorrow.
The next day, the laptop totally cannot swithc ON! I pressed the ON button for several times. It seems no respond. However, the power light is on. I was so frustrated. I can’t live without laptop, can you?
I need to be on duty last Sunday. So, I couldn’t send my laptop to workshop. I searched thru the internet about the similar problem. There is a case which is 99% closed with my situation. It was posted in a forum. They said it is RAM problem!
I went to Digital Mall after work. I saw a guy (who I think he is honest) was repairing the laptop. I approached him and told him my problem. After 15 minutes troubleshoot, he identified it was RAM’s problem. So, I decided to change the RAM to 2GB. I have to say he is a nice guy. He didn’t charge me for the service and only charge for the RAM. The RAM cost me RM135. So, my laptop is 2.5GB RAM now.
I was so scared at that time. I was thinking to get a new laptop if anything happened. Thanks god that let me get rid of this matter. Have you encountered similar problem before?