no biggie, all course selection stuff is online, and you don't have to come to the lab thingymajig. i didn't go last year since i was in london, and i was totally fine. now with this forum up and all, you shouldn't have any problems with the process.
that being said, if you're out of the country, it might actually benefit you depending where you are. when selecting electives, classes fill up fast. when the registration opens up at midnight, you may have to fight your way into the overloaded system as many people are trying to do the same thing as you are, hitting refresh constantly hoping to get past the message that says "too many people are on MUGSI, try again later" (it works). if that doesnt work, you could return at about 4 am canada time, when fewer people are likely to be on the system, and try choosing your electives then. if you're out of the country, then you won't have to stay awake until late 4 am waiting to get in