I've noticed several posts and I've done one myself on runtime 480 error messages. I started having problems with the error messages about 3 weeks ago right after I loaded the 1.47 patch for HITR. I've NEVER had any problem with the game up until that time. Since then I've reinstalled BHAH and HITR four times. I'm still encountering the error messages. I reloaded BHAH and installed up to the 1.32g patch tonight and received the runtime error message. The runtime error always occurs after I fly some type of mission, quick combat, campaign mission, etc.  I'm at my wits end. I've tried everything I can think of to fix the problem, i.e., running gamebooster to turn off unnecessary background programs, run cc cleaner, registry cleaners, and moved the sliders down a notch in CONFIG. I did a complete reinstall of Windows XP in December. I'm hoping that someone can tell me what I need to do to get the game running properly. My specs are listed below: 
  
Dell Inspiron 530 
Intel® Core 2 Quad Q6600 @ 2.40 GHz 
Galaxy GE Force 9600GT Low Power/Profile Video Card w/512 MB of Video RAM 
4 GIG of RAM 
  
My sliders in config are 3, 4, 2, 2, 3, 2 
  
Eagerly awaiting a response and let me know what other information you need. Thanks for the help.