no result after performing one sample t-test for the mrehomap

hi
i got two rehomap after performing reho analysis. after that i used the mreho map for statistical analysis.
there was no error and t-test was completed sucessfully, but when i overlayed it on ch2 template image. it was just a blank image(like plain colour)
how to solve this and how can i perform statistical analysis of reho results. the manaul provided does'nt provide sufficient information.

Forums:

 What is "two rehomap" mean? Do you mean you got two individual ReHo maps? If only two (n = 2), one-sample t-test is invalid. 

Thank you sir for your reply
By two rehomaps i mean:mrehomap and rehomap, i used the mreho map for one sample t-test.

thank you