Too much time in stop method - IE locks up

I have a problem where IE & Java Console are occasionally locking up when going from one page with an applet to another. I managed to narrow it down to a specific test case:
The basics are:
On a button press: Applet 1 calls getAppletContext().showDocument(url, newpage)
then getAppletContext().showDocument(closeurl, "_self")
closeurl is a html page that calls top.close in it's ONLOAD.
url goes to a page with the Applet 2.
next:
On a button press: Applet 2 calls getAppletContext().showDocument(url2, newpage)
then getAppletContext().showDocument(closeurl, "_self")
closeurl is a html page that calls top.close in it's ONLOAD.
url2 goes to a page with the Applet 1.
So basically I have 2 applets that on a button press launch another window with a different applet and close their own window.
Normally this is fine, and I can happily click away launching one applet right after the other.
However, if I add a loop in the stop() method, for example:
int j=0;
for *int i=0; i<100000; i++)
j+=i;
Just to slow down the stop(), then after a few clicks/applet loads, the new applet will come up partially, then lock up. The java console is also locked up, and I have to kill the IE process to recover.
Now in my code where I started having this problem, what I'm doing is notifying a server process that I'm dying from the stop method. It works fine most of the time, but every once in a while I get the lockup. I wrote the other test case as I was trying to narrow down the cause. I'm currently looking at minimizing the code in the stop() method (not that there was that much in the first place), but does anyone have any suggestions or possible reasons that this might occur?
Any help would be greatly appreciated.
Thanks,
Keith Ambrose

Update:
It appears that the lockup can still occur, even if I don't have anything in the stop method.
I seems more likely if I have the for loop in place, but since it's random it's hard to tell.
Ideas anyone?

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Hi fiontan,
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Tags edited by: Michael Appleby

Hi fiontan,
Thanks a lot for the response!!!
Yeah!! I kow it's a lotta code, but i thought it'd be more informative if the whole function was quoted.
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