Hi tonyg,
Sorry to see your having an issue with the canopy, what is the setup? Is this an original E7 with the push on type fixing post or is it an E7SE with the keychain type fixings?
Either should give adequate clearing for the canopy, is there any chance of getting a picture of your setup to help diagnose?
Some canopies, particularly aftermarket ones can become distored during shipping and some require a little 'tweeking', this is easily done by either doing as Grimmy mentioned and spacing out the mounts slightly with washers or using a soft towel or something similiar between the canopy and main gear to space it out and using a hair dryer lightly warm the canopy to soften it and allow to cool, this should reset the canopy shape and give adequate clearance. Be careful using this method though so you don't get the canopy too hot and soften it too much and distort it.
Hope this helps, and let us know how you get on and if you get a picture just post it up so we can have a look at your setup.
Cheers,
Ross