ie6/ie7 no longer maintain browser history

Internet Explorer101
i'm running xp with sp2. just upgraded from ie6 to ie7



this is hard to explain, but while I had ie6 something happened to the pc,

either a wu or some other software downloaded or a manual change, that turned

off history.



now I've upgraded to ie7, and history is still not preserved.



I have settings set to save for 20 days, 100 mb for temporary internet

files, in the advanced tab the feature 'delete temporary internet files when

browser is closed' in not checked.



can anyone suggest something else I should look at?



Thanks in advance for your help.

Tom


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