Can't say for sure, yet, if this is the fix, but:
Quote:
StarCraft II: Wings of Liberty – Patch 1.3.4
Bug Fixes
Fixed a bug that would cause some Leagues & Ladder pages not to show correctly.
The problem was that there was a second GM league created causing some people to get promoted into the second GM league so the only way to stop that from happening was to lock everything.
Hopefully it's fixed now so everyone can go back to being happy.
My suspicion says it's not fixed yet. I just tried clicking on the GM tab and it still shows as Not Ranked Yet.