SolidWorks binds the license to the user by e-mail address, so that's why it's unable to discern your license from your schools site license.
What you'll need to do is register a different email address with one of them.
I would suggest doing that for your student edition. In order to effect that change, you'll need to call SolidWorks customer service. There should be a number for it them in your installation kit. If not, go to the support page of the SolidWorks web site and look for a topic like: "Licensing and Activation"
Thanks for the reply. The only problem with that is that it requires it be a school based email address to purchase the license, which is why i had to use it in the first place. i will give it a go though cheers