I have a RadWindow that pops up a search using a RadGrid. Sometimes the parent window will lose its state or session after clicking a series of controls. It is a very odd problem but seems to occur everywhere I use a RadWindow in this fashion. If I open the RadWindow, click search twice and then page 6 times then the parent window loses state or session (not sure exactly). It's very strange, because why does it take paging the RadGrid 6 times to cause the problem and not 3 or 4? So, at this point, I am looking for any ideas or even guesses as to what may be causing this problem. I don't want to post the code because there is too much to reasonably ask you to look at, but please let me know if you have any thoughts that might be useful.