IE7 (Windows Vista Home)
Drupal 5.7
Input Format : Filtered HTML, Embedded HTML, Textile

Formatting shows in WYSWIG Editor, but upon preview or submit, formatting is lost for the following:
superscript
subscript
font color
font family
image
indent
code (doesn't work in WYSWIG either)

ordered list left-margin (numbers themselves) is truncated.

The HTML code shows the appropriate tags, but they are not appearing in preview or final.

LI are ill-formed: lack closing tags, except too few and bunched just before

    tag.