I updated form 6.1 to 6.2 today without issue. KLC works fine with IE8 and IE9. However, I use SRWare Iron, which is a variant of Chrome. Once I installed the plugin, the KLC launches, installs everytime still, then gives me a blank white screen. Before I open a ticket with support, just checking if anyone else had this issue and was able to fix it.
Reset your browser settings to defaults. This fixed the issue for most.
If that doesnt work, go to Https://<yourKServer>/SystemTab/AdminPreferences.asp and click the default button on the bottom of the page.
Thanks for the tip Pete. I got it working.
Now it asks me to install the plug-in every time I launch KLC. Is this happening to anyone else?