A technological glitch is confounding information technology experts and causing major headaches for some students and professors across the UW System as the 2012-13 academic year gets under way. The problem lies within the university?s online learning and course management system, which is provided by the company Desire2Learn and managed by UW-Madison?s Division of Information Technology (DoIT). According to this university update posted Friday at noon: ?DoIT technologists continue to work daily with experts from Desire2Learn (D2L) and Microsoft to address the issue of slow application response. We?re keenly aware of the problem and regret the impact on the UW educational community.