A. - what 'upgrade' ??? There isn't an upgrade package from 1.7.3 to 1.7.7 -
B. - do you mean you uninstalled/removed 1.7.3 and then installed 1.7.7???
so, two answers -
If you installed 1.7.7 properly (B.), the answer is to use 'its' php.ini, and then make any needed adjustments.
If you did "A" - using the 'xampp-linux-upgrade-1.7.4-1.7.7.tar.gz'
following these instructions:http://www.apachefriends.org/en/faq-xam ... ml#upgrade
I'm unsure what to do without a bit of thought.