[SOLVED] 500 error when I click on COnfiguration

Didn't see this in the RCs, but I installed 1.8 and now I get 500 error when I try to reach config. All other CB links work fine. Nothing found in error log. I'm on php 5.3.10

[strike]this issue is keeping my moderator approval emails form going out it appears[/strike] I just didn't have an email in that spot stupidly

I also get this error when I click on System Info it that helps

switching back to 5.2.17 fixes this issue, talking to my host now

actually I found these:

File does not exist: /home/site/public_html/500.shtml, referer: www.site.org/administrator/index.php?option=com_config

File does not exist: /home/site/public_html/500.shtml, referer: www.site.org/administrator/index.php?option=com_comprofiler&task=checkcbdb&databaseid=2&cbsecuritym3=cbm_5704cdee_305b2cfd_f7b231d61fed2353f498a9029eb8ce29

File does not exist: /home/site/public_html/templates/khepri, referer: www.site.org/administrator/index.php?option=com_config

this is not a CB issue, but php. if anyone can hep I'd appreciate it, but this is not pressing.

solved: a bad php.ini file. I had to comment out these lines to use 5.3:

;extension=pdo.so
;extension=pdo_sqlite.so
;extension=sqlite.so
;extension=pdo_mysql.so
;extension="ixed.5.2.lin"