Why is http://localhost/jumbo/p_login.php displaying a blank screen after login?
That's not supposed to happen.
What does the Apache error log say?
If you're running WAMP, you can open the error log from the shortcut icon > Apache > Apache error log
Scroll to the bottom and it will tell you if there is an error for p_login.php.
What version of Jumbo is it? Did go through the setup process (http://modset.net/docsinstallationguide.php)?
- Versions of Jumbo less than 1.1.3 didn't inform you whether or not your system was compatible. If for example your host doesn't support SQLite - It may just stop working without displaying any obvious error message. If you're using Windows, you can download and install the latest version of WAMP and that should fix it.
Let me know how things go :)