Problem: ()[]{} invisible inside the script-tag

Hi there,
This morning I realised I had some strange problem with my Dreamweaver CS4. The brackets ()[]{} are somehow invisible inside the script-tag. I know they are still there, because they execute correctly and when I copy a codefragment with some (of the now invisible) brackets to another text-editor, they are there again.
Let me give a short example:
// Brackets are visible in DW ()[]{} These are visible, tooI can see the "bla", but NOT the brackets before and after it. ()[]{} These here are visible again.
So you see, brackets are somehow made invisible inside the script-tag, and I'd like to know how to make them visible again.
Here's what I tried so far (everything without success):
- restart Dreamweaver
- restart PC
- check the options menu (didn't find anything for this problem)
- hide/show the script-tag using dreaweaver's feature for this.
Intresting point here: when the part where the brackets are, are collapsed it shows me "()[]{}[..." as a preview. So even Dreamweaver "knows" the brackets are there, but still refuses to show them -_-
- set the gui setting from "coder" to "classic" and back.
Any help is appreciated!
Thanks in advance, really need to solve this, since I am using alot of hardcoded 2-dimensional javascript arrays and therefore alot of []
Best regards
Michael

Sorry for doubleposting, I should have read the manual for posting code :|
here's the code I was giving as an example:
<title>brackets work fine here: ()[]{}</title>
<style type="text/css">
.someclass {background:url(theseBracketsAreVisible.png)}
</style>
</head>
<body>
<div>()[]{} these are visible as well</div>
<script language="javascript">()[]{}[bla]</script> I can see the "bla", but NOT the brackets before and after it.
()[]{} These here are visible again.
</body>
Sorry again..
edit:
I realised it hides words like "function" aswell o_O
<script language="javascript">
function test() {ar = new Array;ar = ["a","b","c"];alert(ar);};
</script>
The code above is visible for me in Dreamweaver like this:
<script language="javascript">
test ar = Array;ar = "a","b","c";alertar;;
</script>
really strange..

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