Call for help

Since yesterday, my Windows Live mail account on my HTC S620 has lost HTML capability. I've been trying to restore it, but in vain. I went to switch accounts and clear password, but my Hotmail still will not display emails in HTML format. I know it's the device, since it works on my HTC Wizard. Hard reset is not an option and is not worth it. It would be nice to troubleshoot this issue, so if anybody has an idea, do send me a note. I will really appreciate. Thanks in advance.