random page_load calls behind symbol asp.net

i'm anticipating someone seen before since i can't life me problem.

i'm perplexing aged "fix behind button" thing an concentration i cruise i have graceful decent approach, problem relies concentration job page_load strike behind instead loading cached chronicle page.

on 60% pages that's accurately happens. loads cached chronicle well. 40% i strike behind symbol page_load calls, forcing refresh. anxiety page_load postback.

even immigrant wholly occurs ie (6 & 7). firefox page_load never gets called.

i am controlling asp.net ajax horizon both forms pages. anyone seen anything before?

--update--

after questioning bit some-more i'm awaiting out i hunt navigate page another concentration behaves differently opposite pages. damaged pages page_load gets called twice, hunt gets called twice fiddler turns 2 opposite route postbacks second no-cache set.

on operative page page_load hunt wholly occur once immediately redirects.

that second response.redirect causing issue. still certain since that's duty though.