I've also had the annoying problem of being unable to read some offers sent
me by MGM/Mirage properties, which come out as blanks. I've corresponded and
complained and suggest that others do so as well.
What seems to work is to lower your security of your browser to low or
nothing, and then you may be able to read the ads.
Obviously the problem is poor programming at the MGM/Mirage. I've even
tried phoning marketing to complain, but couldn't get to the correct department.
The best thing to do seems to be to reply to the address at the bottom of
the ad, complain as strongly as possible, and ask them to resend the ad or offer
in a way that is readable.
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