I have exactly the same problem (with PostNuke installation), have searched the Internet and have found many users with this same issue.
But no solution that works for me yet….. 🙁
I get exactly your problem (Open or Save) in I.E. but in Firefox the install.php code is displayed and no install occurs.
Is there something wrong with a file in this new 2.5.1 version?
I had no problem with the 2.5 version.
Talk to your host about PHP.
They may need to add:
AddType application/x-httpd-php .php
to your httpd.conf file.
Also make sure they have enough memory allocated to PHP.
What about if you’re hosting your own blog? I have a ubuntu box that I’m testing everything on before I lay down the $$ to have it hosted somewhere else. I want to play around with themes to see if I can get what I’m after. . . etc etc.
Whenever I point firefox to the …/wp-install.php path I get the exact same thing as above, firefox behaves the same as noted above.
I’m going to check to see what version of PHP, apache, and mysql when I get home later today. But I followed the instuctions reference in the wordpress install doc to a T ( I think).
I’m thinking I may have messed up my wp-config.php file. Don’t ask me how. After looking it over I found that my DB_HOST was set to ‘locahost’ – so I changed it to ‘localhost’ (notice the ommission of the letter “l”). but that didn’t solve my problem. Anyway, I’m now thinking that I should just remove my wordpress folder which was extracted to /var/www and replace it with a new one, just to rule out the possibility that I’m missing another typo in that config file.
Does this sound like a good idea or will my problem likely lie with my version/config of PHP?
I have read so much about apache, php, mysql in the past day that my brain is fried. . . TYIA
FYI:
I got home tonight and rebooted my machine. I attempted one more time to get this install.php page to load, and it worked. The only thing that changed was all my services stopped and were restarted with the reboot.