This service is retroactive for all HP 95LX customers, and is available by calling (503) 757-2004. This number may be familiar to those of you owning an HP calculator -- it's the number we've used for years to provide technical support to our calculator customers. For the first 90 days after you call and register with us, you'll receive unlimited access to Palmtop Customer Support. You'll receive answers to your questions about the use of HP palmtop products and accessories.