Microsoft (MSFT) chief executive Steve Ballmer said just after the company’s debut tablet launched that sales weren’t very “interesting,” and it looks like sales of the Windows RT-powered tablet are still a bit slow. Speaking with French newspaper Le Parisien, Ballmer is quoted as having said Surface sales “are starting modestly.” Ballmer wouldn’t elaborate with any figures, but he did say that the Surface is currently in short supply. The CEO went on to state that supply shortages are “a good sign,” and that Microsoft “will fix this problem quickly.” BGR reviewed the Microsoft Surface last month and we said the tablet’s hardware is fantastic but it is limited by some software issues and a lack of available apps.