Site rendering issue

Hello,

I an posting this issue  here as I think it is permissions related.

I have site, running on application pool with identity - account1.

If I access the site from my laptop, I have next:

- As myself (standard domain user) site doesn't look well, missing images, some text over other text etc.

1. - As account1 (incognito) - looks as it should.
2. - Other way, if I add account1 to local administrator group, again looks as it should.
3. - Account1 has full rights on virtual directory and using Windows Authentication.

Any idea?

Thank you,

Brano