Gmail not working on my Nexus S


I've briefly researched this and cannot find the answer i'm looking for.

I've had my nexus S for about a month now, gmail used to work perfectly, but for the past week or so it has stopped working. The app will open up, and that's it. I cannot scroll through my emails, I can't create new emails, can't view anything or use the search function (magnify glass), it lets me type something to search but nothing happens when I actually tap the search function.

The soft keys (on the nexus s) work when you push them, but nothing works past that. Like if I push on settings, a menu pops up, but I cannot refresh, compose, go to labels, accounts, search and all that jazz. It seems to be frozen solid. Oddly enough though I still get notifications when I get a new email, and I will see it when I open gmail, but I cannot open the email, I can't scroll or tap anywhere on the screen. Nothing happens. :(
The app still syncs, but it just doesn't work, its just frozen. Is there a way to fix it?? I tried to remove gmail (and re-install it), but the phone does not let you remove gmail.

Do I need to reset the whole phone to fix this??