TJ2010,
If you have a valid reason to leave Canada before your PR Card arrives, then it has to be a 'strong-enough' reason. if it is not strong enough, i will strongly advise you to wait for your PR Card. :-\ :-X :-\ :-X. If you leave Canada and CIC requires something from u, it may further delay the PR card issuance. However, if u MUST travel out of Canada, ur family could send the PR card to u by registered courier. If CIC requires u to provide any form of update for ur PR Card and u r already outside Canada, there is no need to panic ??? ??? ;D ;D. All u need to do is to go the a nearby CHC, explain the situation and apply for travel documents to fly back to Canada. ;D ;D ;D
www.cic.gc.ca/english/information/applications/travel.asp
Kcsider