Installation success, but still I get the installer?

[Ed Headset]

HI.

I've got a problem with the 2.2. PB1
I've got it installed with the IONCUBE compiler, and all seems to be working fine.

The installer gives no errors, and ends as it should.

But going back to the iforum/index.php, the installaer starts again (telling me it is lockt).

When i remove the lock, setup is starting allover again.
What's wrong here ?

System info:

PHP Version 4.3.10

MySQL 4.0.18-nt

IIS 6.0

System Windows NT 5.2 build 3790

Build Date Dec 14 2004 17:46:48

Server API CGI/FastCGI

Virtual Directory Support enabled

PHP API 20020918

PHP Extension 20020429

Zend Extension 20021010

Debug Build no

Thread Safety enabled

Registered PHP Streams php, http, ftp, compress.zlib

This program makes use of the Zend Scripting Language Engine:

Zend Engine v1.3.0, Copyright