Hello friends, i have asus laptop k55a, it is new bought, it has 4 GB RAM and 2 core, i installed windows 7 ultimate 32bit. problem is that its reaction is very slow even when i click on the right side of mouse for ,,refresh" thinks for a while, when i turn it on windows welcome sound comes late. what is a problem? should i install 64bit? can u help me? have a nice day.