Hello,
there may be 2 most common causes of this problem:
1. wrongly set rewrite rules (please double check the IsapiRewrite rules)
2. forgotten redirect rule (some old redirect rule forgotten in configuration)
Also, often the problem is wrong site base path, this is new to J1.5.
Check the page source for tag "base" - e.g. <base href="
www.mydomain.coml" /> and make sure it is correct.
If this is wrong, it however has a bit different behaiour than redirecting everything to homepage. However, you you would have in configuration set, that all Not found (404) pages are automatically redirected to homepage, it could be the cause.
So check if the servers is experiencing the 404 or not and then check the above mentioned hints. If neither of these help, you can try the paid support.
Best regards,
Michal
