Looks like gravatar translation template is obsolete, not translatable strings:
Edit My Public Profile<br />
Link URL...<br />
Link Title...<br />
Display Options<br />
Personal links<br />
Choose an image, below<br />
Click here for help<br />
How your gravatar looks on sites using the following ratings:<br />
Cell phone<br />
Home phone<br />
Work phone<br />
msgid "Custom Background"
msgstr "Pasirinktinis fonas"
in action "Custom Fonas"
strings which not shown(because .pot is obsolete):
If you want to remove your profile information, just go to the <a href=\"%s"
"\">profile editor and delete it manually.
"Your Gravatar (image) will continue to work even with your "
"profile hidden. If you want to remove your Gravatar as well, go to the <a "
"href=\"%s\">Manage My Gravatars page and click the Don't use this "
"image link underneath each email address in the list."
+ those which i mentioned earlier.