Resource types

I am using eXe with Moodle and exporting them as html files to Moodle. I created a style in eXe that made all hyperlinks underlined in accordance with usability guidelines. However, since I have upgraded to 1.9.1 version of Moodle the hyperlinks are no longer underlined but they are still look right in Moodle 1.6.

When I look at them in ExE they are fine and if I export the files as html and view them in a browser (both IE and Firefox) they are also OK. This might be a eXe question but I would appreciate any tips on how to solve this problem.

in the style this is the code

a {
text-decoration: underline;
}

a:hover {
text-decoration: underline;
}

is this redundant for 1.9, any answers most appreciated!