Nokia :: E72 / Working As Modem / Unable To Connect To All Websites From Laptop

I have an issue with my e72-1 at the moment. It's either the phone, the ovi software.I have the following: Nokia e72 < acts as modem via cable or bluetooth > laptop..When it acts over modem via either cable or bluetooth, I can only access certain sites eg.I can't access google, or msn messenger for instance
I can access wikipedia, and my ISPs website as an example.Originally I thought it was because it was only able to access australian servers, but this isn't the case. My browser just seems unable to get a connection to certain sites/servers ever - it times out when i try to view google - but only when my phone is the link to the internet.On the phone, I can access every site/server that I want. But not on my laptop via the phone. When I'm on another internet connection (home or work etc), I have no issues connecting to those sites/servers from my laptop.Browsing google over other connections has not helped me find a solution yet. The connection to the net is stable - it doesn't drop out and can remain connected indefinitely.I'm running:

Laptop version: windows7, with ovi 2.2.0.241

Phone version: 031.023

The results have been the same on earlier versions of the phone and ovi software. Any help would be greatly appreciated.