If you notice that your computer often hang and when you restart it, coloful boxes or large pixel appear during POST (before entering Windows) that means it's time to change your graphic card. Sometimes the monitor might give you a pink screen when you enter Safe Mode, this is one of the sign that your graphic card is bad. However not to worry...just take your graphic card to repair if it's still under warranty (usually 3 years) or just buy a new one as it is not that expensive for a normal / basic graphic card (appx. RM 150-250)
