can not connec to the internet after installing pcpandora?

[nickadoodle]

I just purchased the pandora pc program and right after downloading it I cannot get on the internet at all! It will not connect to the internet. I have Mcafee virus protection and I made sure that it allowed full access and it still won't let me conncet to the internet so I had to uninstall it again. What program is stopping me from getting online once it is installed?
thanks
ginger mohr