Help! I just bought 2007 Microsoft Professional Office Trial Version for a class I'm taking at college. The license agreement said I can install it on one device and also my personal portable unit. I put it on my desktop then installed it on my laptop. On my laptop when I try to use it I get a message that my product key code has already been used. I called Microsoft and they told me they do not have any support for trial versions. Can anybody tell me how to activate this on my laptop?