The OM site is working Fine with FIREFOX so maybe just clear your internet cookies & cache or any other web junk that may help.
** tried 3x in 10 min and it's working **
DISCLAIMER its your decision to BUY/SELL/SHORT/HOLD/WATCH do your DD know your risk i state my Opinions/Speculations based on my own DD, im not a Financial Advisor use Google to find one ;-) Facts = Proof via News/Filings/Links/Profile etc