Try the first thing in the FAQ's technical section because it's likely a DEP crash. If that doesn't solve it, then feel free to add the info from Windows Event Viewer into this thread and I'll check when I get a chance.
Open Event Viewer, expand Windows Logs on the left, click on Application, wait for it to load the events, and then find the Error event for when PSOBB crashed. It'll look something like this
Post only the Exception code, Fault offset, and the final component of the Faulting module path (not the full path--just whatever is after the final backslash). In my...