Intrade changes its check clearing policy

here:

As of Tuesday, March 26th 2008, the Exchange will no longer be pre-clearing check deposits.

All check deposits received after this date will be subject to the full ten-business day clearance policy enforced by our bank. This is regardless of your previous deposit record or if we have pre-cleared checks for you in the past. The funds must now be fully cleared by our bank before being made available for trading.

Identical Tradesports announcement here.