IE 6 setting keeps changing

Hi There!

My Text View Size in IE6 Explorer keeps changing my setting. I like it as Medium, but when I exit explorer, then return, my Text View Size gets reset to Small, which is too tiny for me to read. I always have to go back to View>Text Size>Medium again. How do I prevent IE6 from changing my Text View Size back to small??? Thanks in advance!

ps. I set my video display in 1600 x 1200. I like it this way because I get more desktop space.