Broswer and OS emulators

[nitinpatel1117]

i have a website, which as flash elements on the screen.

I've tested it on all the major broswers, IE 6 & 7, firefox v1 & 2, opera, safari.
Works perfect on all these broswers,

However, i tested on windows XP, and now just found out that a part of the flash element does not work on firefox v2 when the user has windows vista OS.

All other broswer on vista are fine, just Firefox seems to be affected. Same vesion of firefox on Vista and XP

firstly, has anyone ever come across this problem, as i had never thought that the OS would have made a difference.

and secondly does anyone know any broswer emulators that emulate across different OS as well, in particular Vista OS

thanks.

[drhowarddrfine]

I have heard of such things but not witnessed it myself.