The GroupWise client is auto-capitalizing words when it should not.
This is resolved in FTF build 136023 and higher. Open up a service request if needed and request the latest FTF build.
Also, keep in mind that from FTF 18.2.1 build 135931 this feature is turned off by default. To turn it back on use the following registry key:
HKEY_CURRENT_USER\Software\Novell\GroupWise\Client\ "AutoCapitalize Words AsYou Type"
This behavior will change in future releases of the GroupWise client