The font size on some pages, such as google are very small and changing the default to 14 seemed to do nothing for most pages. Is there another way to change the font size? I've looked around and I can't seem to find a way to switch it into column view either.
Browser > menu button > options > font size - is going to be the only way that I can think of to resolve this issue and I see that you have done that already so - the issue is most likely caused by those actual web sites (or webmasters) that you are visiting from your device browser. Maybe try another browser (check App World maybe) or if you know some one who has the same device - have them try those specific sites out on their device and compare the results.
And for the column view issue - it's my understanding that the browser on this particular device does not have an option to switch views like you mentioned.