Help! Shrunken Interface! Anyone know Firefox?

[Idyllic]

I was typing a message I suppose kind of fast and my finges slid on the keyboard and the next thing I know the MedHelp Interface looks like this:
http://www.medhelp.org/user_photos/show/316454?personal_page_id=1282072

It is only MedHelp that is like this. When I open a new window everywhere on the Internet it fine but when I click on MedHelp the interface is small. I cannot think what I did since it is just on this site.
I logged in via Explorer to post this.

[Dee1956]

You guys are the best, when one of us gets in trouble we are all there to help each other.
This is the best place to be and I appreciate every one
Dee

[flcyclist]

press control + or - to zoom in or out.  

[Emily_MHManager]

Hi -

Yes, try Dee's suggestion, and let us know if it doesn't work for you.

Emily

[Dee1956]

I found it, go to the top of the HCV forum, put arrow over community setting a set of A's will show up and you can high light the one you want
The A's used to visible
I hope this helps you
D

[Dee1956]

I just looked this up under screen size, someones screen was huge and another member told them to look for the "font size" there there are 3 choices
I am still looking

[Dee1956]

Hey there I use Firefox, it almost appears as if it is showing up as another screen I will try to find an answer, of course I am computer illeterate :)