[TYPO3] Error in tree.js?

[Florian Seirer]

Hi list!

I just tried to click on the plus/minus icons in the page tree (page or 
list module, doesn't matter) to expand/collapse my page tree.

But as a result I get the following error message from firebug:

uncaught exception: [Exception... "Component returned failure code: 
0x80004003 (NS_ERROR_INVALID_POINTER) 
[nsIDOMHTMLDivElement.removeChild]" nsresult: "0x80004003 
(NS_ERROR_INVALID_POINTER)" location: "JS frame :: 
http://localhost/typo3/tree.js :: anonymous :: line 51" data: no]

I haven't changed tree.js since installing TYPO3, and it's not skin 
related either, I guess.

I'm using TYPO3 4.1 on a Windows XAMPP installlation (php 5.0.5, mysql 
4.1.16, apache 2.0.54)

Any ideas?

Greetings,
Flo