When renaming SharePoint views users are often stuck with the unintended side effects of having both an internal file name and external display name.   If understood and managed properly this can be an advantage (not a bug).   A short simple internal name can provide a concise URL while longer display names can provide end user navigation and context.

The Internal name is set at creation time and cannot be easily changed later.  So, the next time you make a new view try to use a short name first then come back and rename to something longer immediately after.   This way you get the best of both worlds:  a short URL and a longer more descriptive navigation link. 

Source: http://en.wikipedia.org/wiki/TPS_report