Originally Posted by JediMDan
I got the same problem and checked the console. It turns out that it was looking for BackToTheFuture101, while the file was actually named BackToTheFuture101drm or something like that. Just change the name to BackToTheFuture101 and it will work.
This solved the problem for me, so a big thank you is in order. It's a shame this file naming error is present in a final release of the game. It led to a very infuriating evening/early morning on the 22nd/23rd December and a fine from my ISP for exceeding my broadband usage limit! Re-downloading the file definitely was NOT the way to solve this BUG!!