[FishInAPhoneBooth]

I had this problem in a late in a MTT. I was trying to track the big stack at table one but got the exact problem you described. Worried I wouldn't be able to ever open it if(when) I final tabled, I called support.

After much jibber-jabber they told me the reason was that someone at the table "had the same ip." The guy said that it could also be from the same region on a similar ISP. I don't buy it, but thats what he said.

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PS - Weird I could watch them from my brothers comp on the same IP...