The risk of heart attacks and other circulation problems may be high in HIV infected individuals. This may be due to the inflammatory stress effects of HIV. The main purpose of the study is to see if rosuvastatin will have a beneficial effect on the circulatory system in HIV infected individuals even in those who do not have high LDL cholesterol levels. Therefore, in HIV-infected individuals with normal or low LDL cholesterol levels but with evidence of low HDL cholesterol levels which may be a sign of low grade inflammation, the study will look at whether 3 months of rosuvastatin will lead to improvement in brachial artery flow-mediated dilatation (FMD), a marker of early atherosclerosis (hardening of the blood vessels).