I'm the host...
I can open the session file and read it.... data is being written the first time around, but when trying to go to a subsequent page the session is still there but the data is blank. the session first reads:
WADbSearch2_sg_recital_comp_perfor_desc_results|s:33:" AND ((perfor_name LIKE '%tap%'))";WADbSearch1_sg_recital_comp_desc_results|s:34:" AND ((recital_name LIKE '%tap%'))"
'tap' was my search form search text