Mac sales were strong during the month of April, while overall PC shipment demand declined. Merrill Lynch said April PC demand slowed ahead of sluggish summer months, but noted that according to Forbes. The firm noted that notebooks remained a strong seller (along with declining desktop sales) during the month due to lower average selling prices and that activity levels "remained extremely high" at Apple's retail stores. In the Wintel sector, HP lost shelf space during the month and its declining share of desktop sales, was partially offset by increased notebook sales, according to the research firm. The firm noted that AMD processors continue to lose share in desktops with about 12% of all desktops displayed carrying the AMD logo, down from an average 23% since last July.