Problem with Interface.

Hello to everyone.
I've re-installed Civ 4 & Dune Wars mod, now I have no Interface in mod & Alt-I doesn't work.
There's no such problem with unmoded Civ.
Would you help me with advice?

The installation instructions for 1.9.4 and 1.9.5 both specify that you must have 1.9.1 installed first. The numbering is a little odd. But, the problem you describe could happen if you had only 1.9.4/1.9.5 installed without 1.9.1. Can you confirm 1.9.1 is installed first?

Yep, I can echo David's reply and say it definitely sounds like an installation issue. Like David said, make sure to install 1.9.1 first (linked in my sig) as that has most of the main files required, then re-install the 1.9.5 patch.