If you have any questions about using your calculator, first try checking my site (and more specifically, the FAQs on my site) for an answer. If you don't find the answer on my site, try searching the comp.sys.hp48 newsgroup. If you can't find an answer there, then try posting your question to the newsgroup.
If you have any comments, advice, or questions about this site, please email me. Please remember, I'm just an individual, running this site for fun. I'm not HP, and I don't have a staff to help me; I'm only working on this site in my spare time, so I do not have time to provide technical support for the calculators.
If you decide to email me, my address is below. You'll have to type it into your email program manually. I'm sorry, but this is what I have to do to make sure it's (nearly) spamproofed.