I have the same problem with both 10.6 ME and the new 10.7. I have a jsp file (jsf 1.2) and ME will not suggest any content-assist/code completion for the tags themselves. Once I enter the tag, it does know which parameters I have to choose from inside the tag.
For example, if I type:
<ice:panel and hit ctrl-space, it does not show the possible matches. Same if I do <f:vi ctrl-space.
But if I enter the tag like:
<ice:panelGrid and hit ctrl-space, it does suggest which parameters I can enter and has the help descriptions.
Any idea what is going on? The beginning of my .jspx files look like: