This has maybe been asked before, sorry if it has. My system is a Asus P5W DH Deluxe Mobo Intel Core2 Duo 6400 Processor 2 x 512mb DDR2 6400 Memory Gainward 6800 256Mb PCi Express Graphics Running Vista Ultimate My main problem is my memory always runs above 68%, sometimes up to 92%, thus stopping me running certain programs. I have just put in a 2Gb USB pen, but this has made matters worse, so before I pull my hair out can someone please tell me if I am doing something wrong? Maybe I have missed something, or just have my settings wrong, or maybe Microsoft have got into bed with the main memory manufacturers ?!? Any help would be great, many thanks Yorkie