old zoho email linked to my new zoho crm please help !

old zoho email linked to my new zoho crm please help !

Hi there, 

I have just changed jobs but am using the same laptop. 

My old job used zoho email but not a zoho crm. 

As part of my new job I am setting up a zoho crm. However my old email address is linked to the new zoho crm that I have set up. I tried to go in to the Accounts section to change it to my gmail address but it wont let me. It keeps saying invalid current password. I went to my gmail and changed the password and tried again but it keeps saying invalid current password.

Please help ! :) ! 

thanks a million

Maria