Technical Support
Your technical questions can be answered free by a Ph.D. statistician during regular business hours (8:00 a.m. to 5:00 p.m. -- mountain time) by calling (801) 546-0445. You can also email your questions to support@ncss.com.

Frequently Asked Questions
Click here to go to the frequently asked questions page.

Common Problems
1. Strange calculation results or problems on computers with Windows language settings other than English ("subscript out of range", "value of 0 is out of range", etc.).
2. Problems loading/running NCSS, PASS, and/or GESS.
3. Graphs not appearing in NCSS, PASS or GESS output.
4. Printing problems.
5. Change your serial number.
6. Editing Macros with Windows Vista.

Updates
Click here to download product updates.
Click here to view the problems that have recently been fixed in PASS.
Click here to view the problems that have recently been fixed in NCSS.
Click here to view the problems that have recently been fixed in GESS.

System Requirements to run NCSS, PASS, and/or GESS
PASS 2008, NCSS 2007, and GESS 2006 run on 32-bit and 64-bit systems with Windows 7, Vista, XP, 2000, NT, ME, 98, or 95. Requires pentium-class computer with at least 32 MB of RAM. Requires 200 MB of hard disk space. Requires Adobe Reader® version 7 or later to use the NCSS, PASS, and GESS Help Systems.

Earlier versions of NCSS and PASS (e.g. PASS 2005, NCSS 2004, and earlier) will only run on 32-bit systems and with Windows XP or earlier.

Windows 7, Vista, and XP Compatibility
PASS 2008, NCSS 2007, and GESS 2006 are compatible with Windows 7, Vista, and XP. Older versions of NCSS and PASS (e.g. PASS 2005, NCSS 2004, ore earlier) will only run on Windows XP or earlier.

64-Bit Operating Systems
PASS 2008, NCSS 2007, and GESS 2006 will install and run just fine on 64-bit operating systems. Older versions of NCSS and PASS (e.g. PASS 2005, NCSS 2004, and earlier) will only run on 32-bit systems.

Statistical Consulting Services
NCSS now offers statistical consulting services to users of NCSS, PASS, and GESS. Click here for more information.

Training
A 4-week, online training course on using PASS is now being offered through statistics.com. The course is taught by Dr. Thomas P. Ryan. Click here for more information.