No, it isn't common, but a few people have also run into that problem with 64 bit versions of windows (it is common in 32 bit versions, though more returning to the main menu than crashing). There should be a large update today, as long as no serious problems are found during QA. It is 6:30pm in Belgium now, so it should be out soon (12 minutes ago Swen Vincke tweeted "Almost - just one last bug").
