To the best of my knowledge is this a Flash problem. A previous Flash version (9.0.48) worked but had a serious vulnerability, the vulnerability is now fixed but afaik the only supported browser is Firefox (and derivates). It's possible to get Flash to work with Konqueror or Opera, even on a 64 bit system, but the situation is less than ideal and in my experience it doesn't work all the time.
You may find a none working Flashplayer preferable over a crashing browser. There are 3 options:
- remove Flash completely,
- install newest Flash,
- install Gnash (the open but less mature Flashplayer)
Using the old version is NOT an option, it worked well but the security concerns are too grave.
For Konqueror, you may need the latest KDE3 setup and additonal plugins. If you use Opera then version 9.5 beta or higher is required afaik.
some info + fix:
http://www.kdedevelopers.org/node/3162
http://mikearthur.co.uk/?p=171
If you try the fix, please post your experiences and what you've done to get it to work.