I have just isolated an issue that I faced in IE 6 but not FF.
When I view the /rt/Tools/Reports/metrics.html on IE-6 it(the browser) crashes but the same works on FireFox.
This I noticed with version 3.6.5 and 3.8.1 as well.
Can someone who has some idea about this help out? (I have a feeling it has something to do with calendar)