switch between pro trial and indy?

Right, here’s my dilema- currently I’m using Unity 3 Pro (trial) - however I want to release my game and don’t want the “trial” watermark text in the bottom right corner- I don’t think that I’m using any of the pro features (that I’m aware of) - any way to switch to indy for a short while to check if it works?

Best bet is contacting the sales team, or waiting til it runs out.