Query Desiner Freeze

Hi,

I am using 2004s SP11 Revision 418 Query Desinger.

After SP11, in the query desinger when i move characterstic between "rows" and "free characterstics" the screen freeze (I have 2GB), i need close it and open query designer agian. No problem with preivous version (SP9).

Any help is appreciated.

Thanks

Ramesh