thanks for replies friends
@hailstone my CPU config is
Processor : Intel® Pentium® Processor E2180 (1M Cache, 2.00 GHz, 800 MHz FSB) Intel® Pentium® Processor E2180 (1M Cache, 2.00 GHz, 800 MHz FSB)with SPEC Code(s)SLA8Y
Mother Board : Asus P5QPL-AM
4gb ram , 1tb hard disk
now...