Problems using Tamino v. 4 with X-Application v. 3.

I’ve been running Tamino with X-Application with good success for about 2 years.
I just upgraded Tamino from v. 3.1.2 to v. 4.1.4, but I’am still running X-Application 3.1.3.
I know that I should use version 4 of X-Application with version 4 of Tamino,
but the problem is that that I’m having troubles updating X-Application because I have to use version
4.0.x of Tomcat.

Everything works fine after the upgrade except for the arrow keys (next and previous) which browse through query results.
They behave very strangely if they work at all.
If someone could give some hints how to solve this problem I would be very happy.

Best regards