i have installed 3 gb of ram ( 2 & 1 ), the problem is when i go on the properties of my computer it is stated as 3.00GB (1.00 GB usable). i opened the task manager the paging memory available shown is 1024 mb. i have checked it using cpuz software both the being detected by the soft......... the computer has become really slow and working on 1.00gb only. please help me. i have also tried removing 1.00 gb ram. it work fine on 2.00gb ram and vice versa......................