Help needed, first few clicks don't work !

[Dani Alex]

First sorry for may bad english.

I'm having problems with my website.

When you enter the website, but not always, when you click on a product or a category the link does not follow and you are returned to index.

After a few clicks it's ok and all returned to normal.

All started when i moved my host server and i think the actual server is the problem.

I mention that i have Ultimate SEO URL's 2.2d5 installed.

The server settings are the following:

PHP version: 5.2.9 (Zend: 2.2.0)

MySql 5.0.77

So if anyone had the same problem or someone who knows what the problem may be please let me know.

Thanks!