Students were met with frustration Monday when they were unable to check their e-mail after the long Martin Luther King Jr. holiday weekend. Few, including some lab assistants in on-campus computer labs, knew the interruption in e-mail service was a planned upgrade.A recorded message at University Technology Services` HELP line said that the e-mail system would be down for upgrading on Monday from “4 a.m. to early evening.” A phone number for upgrade status also was provided. Calls placed Monday evening to this number, the automated status system at OSU’s Network Operations Center, were rerouted back to the original recording.”I didn’t know anything about it,” said Jae Woo An, a junior computer and information science major. “It would have been nice to know in advance, or if they had just done it over a longer holiday, so students wouldn’t have been bothered.”Some of the public computing sites on campus knew of the expected outage while others had missed any announcement.”Students have been trying to check e-mail and some of them have been complaining,” said Mara Frazier, a senior dance major and site assistant at the Morrill Tower computer lab. “The e-mail on my computer isn’t working either.”But a site assistant at the Baker Systems lab said UTS announced the planned outage in their newsgroup a month ago and students complaining of the outage at that lab were being informed accordingly.Efforts on Monday evening to locate the newsgroup announcement were unsuccessful as newsgroups require e-mail to operate.Questions about the timing of the upgrade and the notification of students, faculty and staff could not be addressed and UTS representatives could not be reached for comment due to the holiday.