You got to go to the website and do somethings.......or call them
they will get u fixed up real fast!!!

http://www.realflight.com

nevermind i found the email...here is what u do

DID YOU UPDATE TO XP? If so, you're likely to see this problem:
http://www.gpsoftware.com/kb/q01-1048.htm

FOR ALL VERSIONS OF RealFlight: Will RealFlight run on Windows XP?
Most users do not experience any problems running any version of RealFlight under Windows XP. For users who do experience problems, the majority of the time those problems are related to outdated drivers for the sound card or video card they are using. This can be corrected by downloading and installing updated drivers for those devices from either the computer manufacturer's website or the website of the manufacturer of the device itself. For all other problems, including installation challenges, we are developing the fixes and updates necessary to fully support all versions of RealFlight under Windows XP. Regarding a time frame for their completion, we cannot specifically say how long it will take. XP is still very new, and we still have not seen all the issues we will have to address to know what patches and updates to write.Thus far, most users have been able to get RealFlight running on Win XP without any problem. As we get a clearer picture of what it will take to successfully deal with all the issues regarding RealFlight under Win XP we will add to the fixes and updates we are developing as necessary. Please continue to check our product support website at www.gpsoftware.com for news and availability regarding these patches and updates.

PROBLEMS WITH G2 and XP even AFTER updating drivers?
For those who are having difficulty running RealFlight G2 under Windows XP, we currently have a Beta release of the product update you can try. Here is a link that will take you to the site with the instructions for installing the Beta update:

http://www.knifeedge.com/Unpublished/publicbetacode.htm

Here is the Beta Technical Support Code you need at the above site: B#8c45q5455afy

If you are getting an error message when you try to access the product update server from Windows XP, Then we also have a Beta release of a new RealFlight Control Panel for Windows XP. Here is a link that will take you to the site for downloading this new control panel:

www.knifeedge.com/Unpublished/controlpanel.htm

NOTE: If you decide to test these latest Beta releases, please be aware there may be some things that are unstable or not quite working with them since they are still being developed. If there is a bug that hinders your ability to use these public Beta releases, please report it to us. You can then switch back to the previous version of the software.