An increasing number of computer mice are running round the clock at home, in the park or abroad as the number of online courses and degrees offered by colleges and universities rises in corresponding fashion. Not every college and university chooses to offer courses online at this point. And not all of those that do offer the courses track online enrollment. But for nine metro Detroit colleges and universities that do track those numbers, the trend is clear: Online enrollment at Southeast Michigan colleges and universities has spiked the past few years. Wayne State University , conversely, is seeing the most demand for online courses from its graduate students. About 75 percent of the 542 students who enrolled in Web classes for the fall of 2004 were graduate students. "The MBA was probably 90 percent of that," said Barbara Price, associate vice president for academic personnel in the provost's office. The Detroit-based university offers only one online degree, an MBA, but it offers numerous online courses throughout in other high-demand areas such as nursing, pharmaceutical and engineering, she said. Demand from undergraduates rises as the students get further along in their programs, Price said.