Hrqls: Yes I´m not expert too, but it should be simply explained your way....
Well, I read on web these experiences:
WinXP + SP2, EI 6 --> reboot
WinXP + firefox --> reboot (but I think version 1.0.4 should not have problems with it
Win 2000 + IE --> reboot
Win 200 + firefox --> reboot
Opera no problem (it is very good browser)
win2k sp 4 + firefox1.0.4 --> reboot
Win 98 + firefox1.0.4 --> reboot
linux no problem

So as you can see, win has a problem with it and IE too.