So, I got a really good idea last night, and I was totally pumped to try and block it out for the map I'm working on. Load up Hammer, make a block, click on the Browse button to choose a material for it, and... nothing. Window doesn't appear, and Hammer is now completely unresponsive. Basically, it looks like someone unfocused the window, took a screenshot of it, and replaced the actual program with the screenshot. None of the buttons work or react, including the minimize, maximize, and close buttons. The only way to close Hammer is to end the task in task manager. Re-installing fixes nothing, restarting my computer fixes nothing. Halp?