Web Dynpro for ABAP installation issue

Hi Guys,

My aim is to install trail version of Web Dynpro for ABAP.

I am trying to install "WAS Installation ABAP - SP11" which is a trail version downloaded from SDN.

I installed properly but how can I login to the SAP?

all the instances are working fine, when I try to login I am getting below dump rather than asking for SAP user-id and Password. Please help me.

Runtime Errors

===============

DBIF_RSQL_INVALID_REQUEST

Date and Time 2007-12-11 20:24:16

Short text

Invalid request.

What happened?

The current ABAP/4 program terminated due to

an internal error in the database interface.

Error analysis

An invalid request was made to the SAP database interface in a statement

in which the table "DOKTL " was accessed.

The situation points to an internal error in the SAP software

or to an incorrect status of the respective work process.

For further analysis the SAP system log should be examined

(transaction SM21).

For a precise analysis of the error, you should supply

documents with as many details as possible.

Trigger Location of Runtime Error

Program SAPMSYST

Include SAPMSYST

Row 2,556

Module type (FORM)

Module Name FILL_INFO_TAB "

Regards

SRP